period is late

So I am on birthcontrol although I went through a spill there a bit ago (like atleast 2 months by now) where I kept forgetting so I'd double up , anyways I'd been persistent with it for about 2 months by now and I haven't had sex in awhile. Me and an old
Friend were gonna get together and you know ;) , but when we got together it wasn't really
Happening so we just kinda hungout for a bit instead. But now I'm supposed to get my period 3 days ago and I haven't yet ... Should k be freaking out this soon ? Or what? Someone please tell me what to do!!!