25 weeks pregnant: Your guide to this week of your second trimester

    Updated 01 August 2023 |
    Published 24 February 2019
    Fact Checked
    Medically reviewed by Dr. Angela Jones, Obstetrician and gynecologist, attending physician, Jersey Shore University Medical Center, New Jersey, US
    Written by Kate Hollowood
    Edited by Sarah Biddlecombe
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    Every piece of content at Flo Health adheres to the highest editorial standards for language, style, and medical accuracy. To learn what we do to deliver the best health and lifestyle insights to you, check out our content review principles.

    From your baby changing position to restless legs syndrome, here’s the lowdown on being 25 weeks pregnant.

    At 25 weeks pregnant, it can all start to feel very real. You’re officially well over halfway to full term

    While it is undoubtedly an exciting time, it’s natural to also feel anxious about the changes happening to your body. Knowing what to expect can help you feel more prepared and confident, so here are the key symptoms and milestones to be aware of at this time, including advice from a Flo expert. 

    Your baby at 25 weeks pregnant

    Your baby might change position

    When you’re 25 weeks pregnant, your baby might be changing position frequently. It’s common for babies to move around into a variety of positions during pregnancy. 

    Your baby is peeing

    It can be a funny thought, but your baby at 25 weeks of pregnancy is now peeing. Weird, right? In fact, the fluid surrounding them in your uterus — called the amniotic fluid — is now mainly made up of pee. This fluid is constantly circulating around your baby, who keeps swallowing it and then peeing it out. This might sound odd, but rest assured, it’s completely normal. This water-like substance is actually good for your baby, as it’s full of nutrients, hormones, antibodies, and other fluids to help keep them healthy. Fun fact: If you later notice your water break, which can be a key stage of labor, it’s the amniotic fluid that leaks from your vagina

    How big is a baby at 25 weeks?

    Length (crown to heel): 33.7 cm or 13.3 in.

    Weight: 785 g or 1.7 lb. 

    Size: Equivalent to a bunch of grapes 

    All measurements are approximate and vary within the normal range.

    Your body at 25 weeks pregnant

    Swollen legs and feet

    Have you noticed that you’re getting swollen legs and feet? Don’t worry — this is a classic (and often frustrating) pregnancy symptom. It might feel alarming at first, but the swelling is common at 25 weeks pregnant. It’s caused by your body holding in more water than usual alongside your growing uterus putting more pressure on your veins. This can affect blood flow and cause fluid to build up in your legs, ankles, and feet. Around 8 in 10 pregnant women experience water retention, so if you’re struggling with this, know that you are definitely not alone. 

    If you can, doing foot exercises, resting, and avoiding standing for long periods are some of the things that can help. And don’t cut back on your water intake. Oddly enough, drinking it actually helps to get rid of the excess water (yes, really!). Read our guide on how to reduce swelling for more helpful tips. 

    Just so you know, you should contact your health care provider if the swelling is accompanied by any of the following symptoms:

    • A sudden increase in swelling
    • A bad headache
    • Problems with your vision
    • Severe pain just below your ribs
    • Vomiting with any of these symptoms
    • Shortness of breath

    Although getting swollen legs and feet is common during pregnancy, not everyone gets this symptom. So don’t worry if your legs and feet look no different than usual. 

    Restless legs syndrome

    If you haven’t heard of restless legs syndrome, you’re probably wondering what exactly this odd-sounding symptom is. We asked Dr. Cynthia DeTata, clinical assistant professor of obstetrics and gynecology, Lucile Packard Children’s Hospital, California, US, to explain. 

    “To summarize, it is an uncomfortable feeling when lying down at rest or trying to sleep that is accompanied by an overwhelming urge to move one’s legs,” she explains. “This can be a slight nuisance or severe enough to interfere with sleep. Getting good sleep is difficult anyway during pregnancy, and this can significantly impact sleep and, subsequently, the wellbeing of the mother.” As frustrating as it can be to struggle with sleep during pregnancy, it can be reassuring to know that feeling tired won’t harm your baby

    Dr. DeTata continues, “Restless legs syndrome is very common in pregnancy, particularly in the second and third trimesters.” In fact, research shows that 10% to 34% of pregnant women experience this symptom, so you’re certainly in good company if you do too. 

    Certain things put some people more at risk of developing restless legs syndrome during pregnancy. The main factors are:

    Now for some good news: There are a few things that can help to ease restless legs syndrome, including:

    • Getting regular, light exercise, such as bike riding or walking
    • Applying a heating pad, cold compress, or rubbing your legs
    • Reducing stress as much as possible
    • Taking a warm bath
    • If it’s affecting your sleep, then following good sleep habits (like avoiding looking at a screen while lying in bed) 
    • Avoiding caffeine, nicotine, and alcohol

    Trying magnesium supplements (Although Dr. DeTata adds that there is mixed evidence that this works: “Magnesium and calcium supplementation may help with the symptoms of restless leg syndrome, but the evidence on this is mixed, with some studies finding it is helpful and others that it is not.” If you want to try it, then remember to speak to your doctor before taking any new supplements.)

    If none of the above work for you, then don’t suffer in silence. Reach out to your doctor if you’re experiencing frequent or severe restless legs syndrome symptoms, as there are numerous treatment options available. They will discuss the best treatment for you, which might include certain prescription medications. And if restless legs syndrome is disrupting your precious sleep, our guide on how to cope with pregnancy insomnia might help. 

    Your questions answered

    What should you try to avoid at 25 weeks pregnant?

    As with every other week of your pregnancy, the things to avoid at 25 weeks pregnant include alcohol, large amounts of caffeine, certain types of fish, and processed meats.

    Thinking about adding some healthy foods to your diet is just as important as monitoring what to avoid. “Remember that you need about 300 additional calories a day,” says Dr. DeTata. “These should incorporate fruits in their whole form (not juice), vegetables, and low-fat protein. You should strive to eat high-fiber, more complex carbohydrates, rather than simple carbs such as white rice and white bread, as your body turns them into sugar. Also avoid sweetened drinks — even if they are billed as being healthy and naturally sweetened — and of course, junk food.”  

    While it’s good to keep your diet as healthy as possible, it’s OK to indulge every now and again. So if you find yourself reaching for the cookie jar instead of the carrot sticks, don’t be too hard on yourself about it. 

    What position is my baby in at 25 weeks?

    You might be wondering what your little wriggler is up to in there. Right now, your baby could be in any position, says Dr. DeTata. After all, as we mentioned earlier, they’re constantly moving around in your uterus. “At this point your baby flips and twists all around, even from moment to moment when we are watching on ultrasound,” she says. “Since the position changes so much, we generally don’t worry about a baby being head down until around 35 to 36 weeks of pregnancy.” 

    Are you seven months pregnant at 25 weeks?

    Wondering how to calculate 25 weeks pregnant in months? At this stage, you have just started your seventh month of pregnancy. Dr. DeTata says, “This is a time when most people start to feel better, have more energy, their nausea and food aversions abate, and their appetite can return in full force! It’s also a time when many go from little to rapid weight gain.” 

    But if this experience doesn’t exactly match up with yours, that doesn’t necessarily mean that anything is wrong with you or your baby. Remember, every pregnancy is different, and your body (and baby) will do their own thing.

    Want to know more?

    Download the Flo app for tailored insights throughout your pregnancy

    25 weeks pregnant checklist

    Get dietary copper

    During pregnancy, your body needs more of the mineral copper. If you don’t have enough, it can have a negative impact on the development of your baby’s lungs, skin, bones, and immune system. However, it’s recommended that you get the extra copper you need through food rather than supplements. Some of the richest sources of copper that are safe to eat during pregnancy include seeds and nuts, wheat bran cereals, whole grain products, and, saving the best until last, chocolate. 

    Moisturize your belly

    Unfortunately, getting itchy skin is common during pregnancy. It can be caused by hormonal changes or by your growing belly stretching your skin. Luckily, moisturizers can help to soothe your itchy belly while preventing dry skin. Taking a cool bath and wearing loose-fitting clothes made from natural materials can also help. 

    Having itchy skin doesn’t mean that anything is wrong, but it sure can be annoying. If the itching is really bothering you, worse at night, or worse on the palms of your hands and soles of your feet, then it’s worth speaking to your doctor about it.

    Itchy skin can also be the first sign of stretch marks. However, be wary of any “miracle” moisturizing products that promise to prevent stretch marks from appearing. “While stretch marks might start to appear at this stage, be informed that no cream or product prevents them,” says Dr. DeTata. “They occur due to collagen stretching and the fibers rupturing under the skin. Most treatments are surface treatments. Anything that might penetrate deeper could be a danger to your baby.” 

    And ultimately, of course, stretch marks are nothing to be ashamed of. It can be difficult to adjust to the changes happening to your body, but know that an increasing number of people are choosing to embrace and show off their stretch marks with pride. 

    Start thinking about maternity leave

    Now can be a good time to start thinking about your maternity leave, if you haven’t already. Depending on which country or state you live in, the minimum maternity leave will vary. The amount of pay you will receive while not working also varies greatly between different countries, states, and employers. It can be really helpful to know what you’re entitled to and how this could affect your household’s finances, so doing a bit of research now can pay off later on. 

    If you’re wondering about the best time to go on maternity leave, there are a few things to consider. For example, what are the physical demands of your job? If you have a long and tiring commute or your work requires you to be physically active, you may want to go on maternity leave sooner. Other circumstances where you may want to stop working earlier are if you’re having twins, which can be more tiring, or if you have any special health needs

    You might also want to start thinking about any handovers you’ll need to do or who will cover you in your absence. You’ve still got plenty of time left to think these things through, but feeling prepared can help you stay relaxed as your pregnancy progresses. 

    When to consult a doctor at 25 weeks pregnant

    You don’t need to wait until your appointment if you have any concerns or questions about your pregnancy. However, at 25 weeks pregnant, you should contact your doctor immediately if you experience: 

    This isn’t an exhaustive list and just an example of some of the changes you should look out for. Some of these can be a sign of health complications, so it’s essential that you speak to your doctor about the best next step for you. And if you’re ever worried about any other symptoms you experience during pregnancy, then don’t hesitate to reach out to your health care provider. 

    You should otherwise be seeing your health care provider at regular prenatal visits. These sometimes happen around every four weeks throughout the second trimester, depending on where you live and what’s right for your pregnancy. These appointments may include routine lab tests, checking your baby’s growth, and measuring your vitals like blood pressure and weight. And as we said, if you have anything on your mind that’s worrying or bothering you, it can be reassuring to speak to your doctor about it. Even if you think it sounds trivial, they’ll be happy to help.  

    25 Weeks Pregnant: The takeaway 

    This week, you might be enjoying feeling your baby moving, having more energy, or embracing the return of your appetite. On the other hand, you may be struggling with swollen ankles, restless legs syndrome, and stretch marks. Pregnancy can be an emotional (and physical) roller coaster. However your symptoms are showing up this week, remember to be kind to yourself and take it all one day at a time. 


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    History of updates

    Current version (01 August 2023)

    Medically reviewed by Dr. Angela Jones, Obstetrician and gynecologist, attending physician, Jersey Shore University Medical Center, New Jersey, US
    Written by Kate Hollowood
    Edited by Sarah Biddlecombe

    Published (24 February 2019)

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