Are any sexual positions dangerous for my unborn baby?
This is a great question! Lots of moms-to-be are embarrassed to ask about sex, but everyone wants to know.
In general, anything that feels good to you is fine for you and your baby-to-be. You have probably heard that lying on your back isn't good for the baby, but there isn't any evidence that lying on your back during sex hurts the baby in any way. Plus, by the time you get big enough that lying back might pose a theoretical risk, lying underneath another person won't be comfortable. Many couples find that positions where the woman is on top, or in which the man enters from behind (by spooning, standing, or on hands and knees) work well during pregnancy. Oral sex is fine too, with the one rule that air should not be blown forcefully into the vagina.
Sexual activity is variable during pregnancy. Some couples make like bunnies, while others feel inhibited or lose interest. The most important aspect is good communication, so that both partners can express their needs and concerns. Your doctor or midwife can answer more questions (believe me, you won't ask anything they haven't heard before). They also should tell you specifically if sexual activity should be avoided due to a medical complication of pregnancy. Otherwise, the usual rule is whatever feels good and is acceptable to both partners is fine.