1. Flo - ovulation calculator, due date calculator and period tracker in one health app
  2. Your cycle
  3. Sex
  4. Sexual health

Sex and menstrual cycle: are they connected?

Can your menstrual cycle change after being sexually active? Today we’re answering this and a few other questions related to sex and your cycle.

Menstrual cycle and libido

Many specialists associate changes in sex drive with fluctuations in the ratio of estrogen and progesterone — the hormones produced in the ovaries.

A boost in estrogen can lead to increased libido before period, while boosted progesterone leads to a lower sex drive.
These parameters fluctuate at different phases of the menstrual cycle.

During menstruation and a few days after it, the concentration of both hormones is low, which can cause a decrease in sexual desire.

By the time of ovulation, your estrogen levels go up, reaching their peak, which is why your libido will normally get more intense during this period.

Ovulation is followed by an increase in progesterone production, which may lead to a drop in your sex drive.

Track your cycle and sexual activity with Flo!

Install our free app and join the community of over 50 Million users worldwide!

Does sex affect menstrual cycle duration?

Menstrual cycle duration varies for every woman. Does it depend on the frequency of sexual intercourse?
To answer this question, a number of studies were conducted in the United States in the 1970s.

They involved women with different sexual frequencies, who didn’t use hormonal contraceptives or intrauterine devices and got their first period at least 7 years before the studies.

It turned out that among the respondents who had sex regularly, the menstrual cycle duration mostly ranged from 26–33 days (29.5 days on average).

This duration is considered the most favorable for conception since such cycles are usually ovulatory.

In women having irregular sex, the menstrual cycle duration ranged on a wider scale; very short or very long cycles, which are usually anovulatory, were observed more often than those in the group having more regular sex.

Can regular sex fix menstrual cycle?

After becoming sexually active, some girls may notice that their menstrual cycles have changed.

Indeed, sex can cause changes in the body. The key role is played by orgasm.

It triggers the release of a large amount of oxytocin.

This is not mandatory for conception, but necessary for regulating female hormone fluctuations, reducing stress, and managing the menstrual cycle.

Sexual activity also changes the levels of various hormones that affect the cycle, making it regular and the premenstrual syndrome symptoms less pronounced.

https://www.athenainstitute.com/sciencelinks/sexualbehaviorfrequency1979.html
http://www.newhealthadvisor.com/Does-Having-Sex-Affect-Your-Period.html
http://www.scarleteen.com/article/advice/can_sexual_activity_alter_your_period
https://www.plannedparenthood.org/learn/teens/ask-experts/does-sex-delay-your-period
http://www.13.waisays.com/clitoral.htm
https://www.theguardian.com/lifeandstyle/2016/oct/15/how-period-affects-sex-drive-menstruation-ovulation

Flo Period & Ovulation Tracker

4.8, 279.7K Ratings
  • Amazing! Ricecake2003
    This app is super useful for tracking periods, and has given me mostly accurate predictions so far! I especially love that you can comment anonymously on posts and get help from and give help to the community.
  • Such an intuitive app! Hannah Malone
    I've tried several period tracker apps on the market and nothing is as good as Flo. It's accurate, detailed providing you with an abundance of parameters to log, and they even provide useful articles and surveys to help you better understand the complex nature of the female body.

Read this next

#1 mobile product for women’s health

You will receive a one-time SMS. We will not store or use your phone number in any other way.