Hi my name is shelly im almost 21 and i need help. My last period started on Feb. 18 and ended Feb.23. I had unprotected sex march 5,11,14, and the 16th. My period was suppose to come the 18th and it never did. I have been naushus in the mornings on n off throughout the day n sometimes at night. i have been sleeping n tired more then usual n been going to bathroom more then usual. i took a pregnancy test the 15th which gave a negative and i took another test the 18th which gave a negative. i been getting cramp like pains but no sign of period. and yesterday march 24th i got some discharge in my panties. it was odorless clearish/white n a little runny. what does that mean? and today no signs of a period. Am i preggo and when can i take another test? Please help.