pregnant?

I took my pill for 2 months straight and then wanted to take a break. I did that and didn't get my period. I haven't taken the pill for 2 weeks now because I thought I needed to get back into my old rhythm. Since then, I've had quite a bit of cramping in my lower belly, but my period still hasn't come. I've had unsafe sex since I stopped taking the pill 2 weeks ago.

How big is the chance that I'm pregnant? Considering I do have cramps but my period is missing.

Best, Kaylee