I had protected sex on march 13, 2 weeks later on march 23 got my normal period and the month of april I got my normal period and on month May I missed it I took a HPT and it came out negative. am I pregnant? will I have enough HCG by now to detect if I am pregnant or not? im just very concern. I get mild cramps here and there and a bit sore breast that's it.. by the way I haven't had sex since then