Since we have a thread abotu "is it safe to have sex during pregnancy". I would like to share my point of views on this opposite topic.

There are two types of sexual behavior that aren't safe for any pregnant woman:

1. If you engage in oral sex, your partner should not blow air into your vagina. Blowing air can cause an air embolism (a blockage of a blood vessel by an air bubble), which can be potentially fatal for mother and child.
2. You should not have sex with a partner whose sexual history is unknown to you or who may have a sexually transmitted disease, such as herpes, genital warts, chlamydia, or HIV. If you become infected, the disease may be transmitted to your baby, with potentially dangerous consequences.
3. If your doctor, nurse-midwife, or other pregnancy health care provider anticipates or detects certain significant complications with your pregnancy, he or she is likely to advise against sexual intercourse. The most common risk factors include:

• a history or threat of miscarriage
• a history of pre-term labor (you've previously delivered a baby before 37 weeks) or signs indicating the risk of pre-term labor (such as premature uterine contractions)
• unexplained vaginal bleeding, discharge, or cramping
• leakage of amniotic fluid (the fluid that surrounds the baby)
• placenta previa, a condition in which the placenta (the blood-rich structure that nourishes the baby) is situated down so low that it covers the cervix (the opening of the uterus)
• incompetent cervix, a condition in which the cervix is weakened and dilates (opens) prematurely, raising the risk for miscarriage or premature delivery
• multiple fetuses (you're having twins, triplets, etc.)

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