Hey guys, I'm 18 years old and last week I took a clear blue pregnancy test as I was 3 days late and conceived when I was fertile, the test came back negative in under 15 seconds!! When it said it takes 1-3 or 1-5 minuets, anyway I waited 5 minuets but no change, I am now 11 days late, I have been feeling nauseous almost everyday, I get tired very very quick but no sore breast or sickness? I have also been feeling very very weird dull twinges in my stomach that I can honestly not explain, it's just weird and also cramps here and there, this is the longest I have gone without having a period as I'm usually 3-4 days late the latest, but I have thought I could've been pregnant before and have waited for my period to come and it has, I don't know if I'm paranoid or actually pregnant! As the test was negative! HELP!!!