So two weeks ago this Friday I got my BC out (nexplanon have had it for 5 years). My fiance and I have decided to try and have children. I have two of my own from a previous relationship and he doesn't have any. We had intercourse that Saturday and Sunday then we had it this past Saturday and then again yesterday. But with my BC my periods were either all over the place or non existent. But this past Sunday I started getting cramps. Not like period cramps. Took a test Monday and it was negative but I just haven't felt right. Everything seems off. Any suggestions?