Pregnancy and Sleep
There are many factors that may affect your sleep during pregnancy.
Often, especially in the first and third trimester, you are getting up frequently to use the bathroom or you may need to get up because of nausea in the early morning hours. This interruption of normal sleep may make it difficult to go back to sleep or keep you from getting into a deep, restful sleep.
Other common situations that may interfere with your sleep are heartburn, leg cramps, or round ligament pain which is the uncomfortable lower abdominal sensation that increases in the second trimester due to the uterus stretching. Later in the pregnancy you may have mild irregular contractions that keep you awake off and on through the night. Of course, if your baby is very busy at night because you have been rocking him/her to sleep all day while you walk around, that movement can keep you up as well. For some women, the thoughts of labor and birth or even parenting may cause anxiety that interferes with sleep.