Okay, so i had my regular period on the 6th of August on the 14th i had unprotected sex with my boyfriend, but i took the Plan B pill till the 16th then the 24th i had sex again but we used a condom that same night i found some brownish discharge on my underwear which i thought it was the beginning of my period so i felt relief the pill worked but i thought about it and it was too early for my period which i've always been regular on, then i noticed that my pad wasn't really stained as much just se spotting and the brown discharge, it only lasted about 2-3 days and i feel some tenderness on my breast and i've been feeling very light cramps on my lower abdominal but very very light. Now i don't know if they're symptoms of pregnancy, a miscarriage or just side affects of the Plan B. And i forgot to mentioned that i started taking phentermine pills on the 16th of this month as well.