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Sex positions to avoid during pregnancy
Pregnancy

Sex positions to avoid during pregnancy

3 min readWeek 18
Key takeaways
3 min
  • Avoid positions that put pressure on your belly, including lying on your stomach and missionary position after 30 weeks.
  • Choose side-lying, woman-on-top, or rear-entry positions that minimize abdominal pressure during second and third trimesters.
  • Skip anal sex during pregnancy as it increases infection risk that could lead to preterm labor complications.
  • Listen to your body and stop any position that causes pain, as comfort indicates safety for both you and baby.
  • Communicate openly with your partner about preferences rather than discussing intimate details with your doctor.

During pregnancy, avoid positions where you lie on your stomach or back after 30 weeks, and skip anal sex due to infection risks. Safe options include side-lying, woman-on-top, and rear-entry positions that minimize abdominal pressure while maintaining intimacy.

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In the first trimester, your body appears to have changed very little and your sexual activity won’t suffer from it. But once your belly grows, you may find it necessary to change up your usual sex positions. So, let’s talk about it.  

Will the baby feel anything if the sex is intense or my partner is on top? 

The baby is well protected by the uterine muscles and amniotic fluid. If you do not feel pain, then everything is fine with the baby. However, it is best to avoid experimenting with any new positions that could be painful.

Which positions and types of sex should we avoid?

  • Avoid positions where you lay on your stomach.

  • Just like it’s uncomfortable to sleep on your back after 30 weeks, the traditional missionary position after the 30th week is also a good one to avoid. Your growing uterus can put pressure on the large vessels in the abdomen, making breathing and circulation difficult.

  • Anal sex. Even without this type of intercourse, anal fissures and hemorrhoids can develop during the second and third trimesters [1]. Damage to the mucous membranes and a combination of anal and vaginal sex can lead to the development of an inflammatory process that can include the vagina. That can lead to infection of the amniotic fluid, which could, in turn, lead to preterm labor [2]. In addition, anal sex during pregnancy increases the risk of sexually transmitted infections (STIs) [3]. Some STIs can transfer to the baby during delivery.

Some STIs can transfer to the baby during delivery.

What are the safest positions?

Positions that put little pressure on the abdomen and don’t involve deep penetration are best during the second and third trimesters. You can experiment with new configurations. Studies show that for many couples, pregnancy is often the first impetus for sexual experimentation [4]. Here are some popular positions:

  • Spooning. Lay on your side with your partner behind you. 

  • Doggy style. Relieves the load from your lower back.

  • Cowgirl. Allows you to choose a comfortable penetration angle and pace, at the same time providing you with some fun physical activity.

  • Oral sex. The safest option at any time, although it can be technically challenging to reach the 69 position with a large belly.

Should you discuss postures with your doctor?

It’s not necessary to discuss the details with your doctor. Talking with your partner about safe and enjoyable positions is best. You can regulate the intensity and frequency of sexual intercourse depending on your priorities, desires, and well-being.

Frequently asked questions

Avoid positions where you lie on your stomach or back after 30 weeks, as these can restrict blood flow. Also avoid anal sex due to increased infection risks that could affect your healthy pregnancy.

Yes, sex is generally safe during a healthy pregnancy. Your baby is protected by uterine muscles and amniotic fluid, so normal sexual activity won't harm them.

Side-lying (spooning), woman-on-top, and rear-entry positions are safest. These reduce pressure on your belly and allow you to control depth and pace comfortably.

No, your baby is well-protected by amniotic fluid and strong uterine muscles. If you don't experience pain, your baby is safe regardless of intensity level.

Start modifying positions when your belly grows, typically in the second trimester. Avoid back-lying positions after 30 weeks to maintain proper circulation during your healthy pregnancy.

Medical Disclaimer

This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified health provider with any questions you may have regarding a medical condition.

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Reviewed by healthcare professionals · Updated June 6, 2025

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