I have had cramping since AF was supposed to be here, it comes and goes, switching sides every now and then... I have been told it is normal because the uterus is stretching. A lot of times it feels more like a growing pain, like the ones you get in your leg, but in my abdomen. Whenever I start getting worried I just lay down and relax for a little bit til I feel better. Just relax and take it day by day
