The start of my last period was the 27/03/2013 I had sex on the 13/04/2013 where he ejaculated inside me , the next 2 days i had like stabbing pain/cramps in my left ovarie I'm now due for my periods normally I have pains a week before and very bad back cramps and Ir had no sign ... Should I just take a test or is it to early ? Please help me!