i am 15. i last started my period on january 7th. it is now march the 12th. i normally skip around on my periods. me and my boyfriend use condoms but last month he put it in with out a condom for a few seconds. he didnt cum inside me but he could have pre cumed in me. last month i had some brownish discharge and i always dis charge. i took a pregant test on the 7th in march and it said i wasnt prego but could i still be? pleaseee help me!