okay, i thought that i might be pregnant last week i took 2 pregnancy test and they were bout neg (19th). i usually get my period on the 15th or 16th of each month. and it is always on time. i had unprotected sex for 4 days straight last month and one of those days i was on my period. however, i did get some bleeding on the 20th of this month and it only lasted 2 days. I HAVE NEVER HAD A 2 DAY PERIOD...EVER!!!!!!so i don't think this was a period. i have been sleeping like crazy, having crazy cravings and has experienced minor nausea. i dont have anyone here to talk to due to the fact that im in college out-of-state and im too chicken to go to my mom even though i think she would be thrilled if i were pregnant ( don't ask why).....is there a possibility that i could be pregnant, should i take another test?..when would be the best time?...if i did my calculations correctly i should be 7 weeks pregnant. my last normal period was april 16th. i am confused. i just need help in making the next step. please!