Girls, bleeding between periods?

Okay so I'm on birth control and this is my 3rd month. I've never had bleeding between periods before and I'm a little concerned. The past 2 days I've taken my pill about 3 hours late and I'm wondering if maybe this could be the cause of the bleeding? My next period isn't due for 2 more weeks so I'm definitely sure it isn't that. This is the second day the bleeding has occurred. It isn't a lot but it feels like I have my period, with a bit of cramping. Any and all help is appreciated!!
Girls, bleeding between periods?
Post Opinion