Intercourse during pregnancy can be more uncomfortable or even associated with some pelvic pain. Firstly, the vagina tends to swell because of the increased blood flow to the area and to the increased tendency to retain body fluid during pregnancy. This in itself may make intercourse uncomfortable. Similarly, the vagina tends to be more sensitive during pregnancy and lubrication varies between different women, a drier vagina may make intercourse more uncomfortable. Similarly, orgasm can be associated with contractions of the uterus, bladder or vagina although these are usually short-lived. If the pain associated with having intercourse persists or is associated with bleeding, it is important that you do not ignore the pain and you notify your treating practitioner.