Hi, my last period was April 10th (I had sex every 24hrs after my period went off on the 14th until the27th and ever other day since then) and I was due again for my period May 5th 2012 but I have not yet came on I am 3 days late! I took a pregnancy test the day my period was due but the test was negative I took another that same night but still negative ever since I ovulated I've been having cramps off and on and they have still been coming off and on but now I've been having thick white discharge (no odor) that I just start to notice late last night and today... but today it was a little runny to the point I thought I started my period but I didn't... I've recently went to the doctor and my std screening was negative and no yeast infections nor bacterial... someone PLEASE HELP ME COULD I BE PREGNANT?