I just finished my period 2 weeks ago and about a week after me menstrual cycle I had unprotected sex with my boyfriend he said he didn t finish inside but I had some in my leg, then 3days later we had intercourse again but this time he did finish inside so I called my local clinic to get the morning after pill and I took it b so now its been 2 weeks since, the box said i can take it 3 days after unprotected sex, so now its been 2 weeks after my period and yesterday I started bleeding really dark brown blood not heavy and this morning I got lower stomach cramps not to strong but light to medium pain, what s going on?