Pregnant?

I'll try to keep this short but include anything that might be important- so I'm almost through my second pack of my BC pills. I take combination pills, and in the first week of this pack I missed 2 pills (only time I've missed so far).

I've been having unprotected sex with my SO more regularly without pulling out because we both prefer it, won't get into that any more.

My concern comes because my period is maybe 2 weeks late. I do have an irregular cycle but it hasn't ever been this off. I haven't even had the slightest bit of spotting, only white discharge. I've had very mild cramps a couple of times that made me think I was about to start, but never actually started.

Obviously I plan on taking a pregnancy test, but I would just like to hear what you guys have to say. Has something like this ever happened to you? Could it be the recent start of birth control? Could the only conclusion be pregnancy? Help!