I had sex 5 days before my period on the 16 of February ..had my period on the 22 and it lasted 5 days usual ...I started to have headaches, feeling.g dizzy ...went to pcp and he told me I couldn't be pregnat cause I had my period ..so he gave me pills for headaches..now last Saturday 3/3/13 I was eating breakfast n just felt sick to my stomach.. and been nauseous ever since ..eating lots of chocolate ..not wanting to eat eggs or anything with milk in it .. I took. Test n it was negative :( could it be that is to Soo. For ir to show or am I not pregnant :( I took one today 3-8-13 early n still negative ..should I wait till after my next period to make sure ???