27. Libido Changes
Changes in libido frequently happen during pregnancy. Your sex drive can swing up and down throughout your pregnancy. For some women, an increase in the libido occurs almost immediately after becoming pregnant and then tends to decrease in the last trimester.
Every woman’s experience is unique when it comes to their libido. Some can have high levels of arousal and incredibly intense orgasms. Others can completely lose their desire to have sex. Heightened sexual desire is caused by higher levels of progesterone and estrogen, which increase genital blood flow. For women who have a low libido during pregnancy, stress, nausea, fatigue, and other hard things to deal with during pregnancy completely diminish their need to have sex.