Hey everyone- i'm 17 and im always regular, give or take a few days. I just started having sex in november. Anyways, I was suppost to have my period around the 20th of february and I completely missed it, nothing no spotting no bleeding. There were a couple of cases...The 21st I had unprotected sex, and on vday (14th) I have the moodiness, I am so exhausted, sometimes it so hard to get up in the morning, and a lot of the times at night I feel dizzy and sick to my stomach. Im a night owl...And im finding it hard to even do that anymore. My breasts have swollen, and I have these two bright blue veins in each of them, and just recently I have discorever these little purplish/reddish veins all over each of my boobs too. They kinda look spiderish too. I have been having to goo pee more then usual lately. I get headaches every now and then. A couple times of week, I get these pains that feel like their in my vagina or ovaries. Last week, I was cramping..And ive been getting fevers on and off. Ive taked a pregnancy test last week and it was negative. I would be around 6 weeks(i think) if I was pregnant...Can someone please tell me the chances...And what I should do....When should a pregnancy test come up positive at the latest if you are pregnant...And how many days after sex should you take a pregnancy test?? Someone please help me... :d