I had unprotected sex twice the month of march, had a delayed
period (normally my cycle is 26 days) arriving on CD 35. It was
heavy enough for a tampon, but not my usual heavy cycle. It stopped on day 3. I tested twice on CD 26 and 31 with a HPT and negative result both times. Two days ago, CD 28, I began my next cycle. It was unusually light again, to the point I could have used only a single tampon or pad for the entire day. Today, CD 3, it has basically stopped.