AM I PREGNANT??

Elisa
A bit of back ground information, I'm taking the pill levlen ed, I try and take it everyday at the same time but maybe once in a week I'm late by 2 hours or so, I also never take the sugar pills like I go straight to the next pack, for example, the last time I had my period was 4 months ago.  Ok so the story, on saturday night I had sex, the condom broke and he finished inside me. I took my pill the next morning (Sunday morning) and on Monday morning I realised I better stop taking my pill to see if I'm pregnant, it's now Thursday and I still haven't had my period. 
Also I am getting cramps and normal period things e.g. Eating heaps and getting moody hahaha