Ok so i have a usual 29 day period cycle last feb. it was the 17th and on march it was the 17 and for april it was supposed to be today the 14th. And still no sign of a period yet. I had severe cramping all day fromn the time i woke up until now about 6 hoours later. I woke up late in afternoon i was cold and tired around 2pm. The pain has subsided but i don't know what's up. i had unprotected sex during my ovulation days. I have been wanting a baby for so long now. The pain was lighter yesterday the 13th, but i don't understand why it got worse today. help please. any advice would be great.