I've been having regular periods the last few months may,June and July 2 a months I've been having the beginning and the middle of the month, this month no period and had stomach cramps I have had unprotected sex many times and have funny movement in my stomach and heartburn quite bad, and about 2 days ago I woke in a tariffice pain at 6am was in tears and had heartburn that day I had a little bleeding not a period i the morning only when I whip and my cervix has dropped and is soft and I'm having pain in my back and in my lower stomach, someone help