Hello, My first menstruation started last jan7 (i forgot when it ended, but approximately 1week)... we had unprotected sex/intercourse jan20... and on jan 21/22 i had this brown discharge on my underwear, until now jan25... my headache starts on jan24, really painful that leads to vomiting, feeling dizzy and i had this sour tummy... they say ovulation starts 14 days after the first menstruation... but i'm not quite sure if this is ovulation because i don't have the kit to monitor it... could someone tell me what's happening to me?... could this be a symptoms or a sign of pregnancy?... as early as this moment?... thank you in advance... God bless ^_^