Hi, I had a question regarding my period and whether or not I could be pregnant. I started my last period on April 4th. My cycle is regular, basically 28-30 days most of the time ovulating on day 14 or 15. This means I should've ovulated around April 18th but I had a yeast infection and took antibiotics so it was difficult to tell. Normally, I can always tell when I ovulate. I get crampy and lots of cervical fluid. But, this past month I really couldn't tell. I thought I did on several occasions over that next week and a half. Anyways, my period still hasn't shown up. I thought it was coming yesterday. Had pretty nasty lower back pain going on and light pink spotting. The spotting was very light and only happened over a period of a couple hours. Now, the back pain and spotting is gone. Any advice?