anyone on bc pill experienced this?? TMI

So my boyfriend and I had sex 2 weeks ago & I let him cum in me a little..but now I have been spotting since Thursday ...it's brownish and a hint of pink but it's only when I wipe. It's been going on for 5 days ish off and on. But then again I did skip my period and went straight into my regular pills rather than have a period since my Bf was in town. But has anyone experienced this??