Sex Positions to Avoid When Pregnant

Sex during pregnancy is generally safe for most couples and can remain a healthy, enjoyable part of a relationship throughout all three trimesters. However, as your body changes, some positions become uncomfortable or potentially risky. Knowing which positions to avoid and which ones work better at each stage can help you and your partner stay connected safely.

Is Sex During Pregnancy Safe?

For most healthy pregnancies, yes. The baby is well protected by the amniotic fluid and the strong muscles of the uterus, and a partner cannot penetrate past the cervix during vaginal sex. Sexual activity does not increase the risk of miscarriage in a healthy pregnancy, and unless there are specific complications, it does not make a pregnant woman more likely to go into premature labour.

That said, certain positions place pressure on the belly, restrict blood flow, or allow for deeper penetration than is comfortable later in pregnancy. These are the ones to be mindful of.

Sex Positions to Avoid During Pregnancy

Missionary (in the Second and Third Trimesters)

Missionary is perfectly fine in the first trimester, but it becomes problematic as the pregnancy progresses. Lying on the back with a partner on top puts pressure on the pregnant person's abdomen and can lead to discomfort or difficulty breathing. In the later stages, the weight of the uterus and baby can compress major blood vessels, potentially reducing blood flow to the uterus.

If you enjoy face-to-face intimacy, try placing a wedge pillow under one hip to tilt the pelvis slightly, which takes pressure off the major vessels.

Positions with Deep Penetration

Any position that allows very deep penetration, such as legs on shoulders or certain standing positions, can cause discomfort or pain as the cervix becomes more sensitive during pregnancy. The growing uterus also shifts internal anatomy, making deep thrusting uncomfortable, especially in the second and third trimesters. Shallow, gentle movements are generally more comfortable and safer.

Lying Flat on Your Stomach

This becomes increasingly uncomfortable and impractical from the second trimester onwards. Any position that puts direct weight or pressure on the growing belly should be avoided. Side-lying alternatives such as spooning are far more suitable.

Positions Requiring Intense Physical Effort or Balance

Acrobatic or physically demanding positions carry a fall risk that is not worth taking during pregnancy. Balance and coordination change as the belly grows and the centre of gravity shifts. Stick to stable, low-effort positions where neither partner is at risk of losing balance.

Any Position That Causes Discomfort

This applies at every stage. Mild Braxton Hicks contractions can be triggered by sexual activity and are harmless, but any sharp pain, cramping, or spotting during or after sex should be taken seriously. If a position does not feel right, stop and try something else.

Safe Positions by Trimester

First Trimester

Most positions are still fine early in pregnancy. Morning sickness and fatigue may be the bigger limiting factors. Safe options during the first trimester include the scissor position and missionary.

Second Trimester

The second trimester is often a time of increased libido. While most positions are still safe, it is important to avoid lying flat on your back as it can compromise blood flow to the placenta. Suitable positions include doggy style, cowgirl, and the spider position.

Third Trimester

As the belly grows in the third trimester, positions that minimise pressure on the belly and back are best. Spooning, reverse cowgirl, and rear-entry positions with support, such as facing a wall or table, are all suitable options.

Positions That Work Well Throughout Pregnancy

Spooning: Both partners lie on their sides facing the same direction. This is one of the most comfortable and consistently recommended positions throughout pregnancy as it places no pressure on the belly and allows for gentle, shallow penetration.

Cowgirl: The pregnant partner on top has full control over depth, angle, and pressure. This is generally considered one of the safest and most pleasurable positions from the first through to the third trimester.

Side-lying face to face: Both partners lie on their sides facing each other. This keeps penetration shallow and comfortable and maintains intimacy without any belly pressure.

Edge of the bed: The pregnant partner lies on their back at the edge of the bed with their feet on the floor or on their partner's shoulders while the other partner kneels or stands. This keeps the pregnant partner slightly elevated rather than completely flat, reducing pressure on the vena cava.

When to Avoid Sex Entirely

There are situations where a doctor or midwife may advise against sex during pregnancy altogether, including placenta praevia, a history of preterm labour, unexplained vaginal bleeding, or a dilated cervix. Always follow your healthcare provider's guidance if you have been given specific restrictions.