By 20 weeks pregnant, you might have started to feel your bump developing. While some people “show” sooner than others, starting to see the physical signifiers of your pregnancy can be exciting but also a little daunting. You’re preparing for a major life change, after all.
At 20 weeks pregnant, you may also feel a little bit more like yourself again. Symptoms like fatigue or nausea may have subsided. You might have heard pregnancy nausea referred to as morning sickness, but pregnancy sickness can strike at any time – morning, noon, or night. Alongside changes in your symptoms, you may also have your anatomy scan either this week or in the coming weeks, when you might be able to find out the sex of your baby. This can add a new level of excitement.
Although you’re about halfway through your pregnancy now (as pregnancy is considered to be full-term if your baby is born between 39 weeks and 40 weeks and 6 days), there may still be some new things to consider as your body continues to change and your baby grows. So, here are some of the things to think about at 20 weeks pregnant, with advice from a Flo expert.
Your baby at 20 weeks pregnant
Around now, your baby is producing antibodies that will protect them from getting sick. The two types of antibodies that your baby is producing are called immunoglobulin G (IgG) and immunoglobulin M (IgM). This might sound science-heavy, but IgG and IgM have pretty simple jobs. IgG is responsible for fighting infections caused by bacteria and viruses, while IgMs are the first antibodies that your body produces after being exposed to new germs. Clever, right?
You may remember that at 19 weeks pregnant, your baby develops the vernix caseosa. This is a white, sticky layer (made of mostly water and proteins) that covers their skin to protect them from the amniotic fluid and help them to regulate their temperature. The vernix caseosa has to bind to your baby, and to help it do so, they develop lanugo at around 20 weeks. You can think of this as a soft, fine hair that covers your baby’s body. The lanugo helps to protect your baby and keep them warm. While many babies will shed these fine hairs before being born, some will be born with them.
How big is a baby at 20 weeks?
Length (crown to rump): 25.7 cm or 10.1 in.
Weight: 331 g or 11.7 oz
Size: Equivalent to a grapefruit
All measurements are approximate and vary within the normal range.