what's this mean?

i missed the first two days of my birth control and had sex with my so anyway because we're old enough and ready if it were to happen. anyway, he cums in me & since then for the whole month i've been getting cramps. i continue to take my pill because i didn't think of anything but now i'm starting to think maybe i'm pregnant and cramping because i keep taking my birth control pills. what do you guys think? we're going to get a test tomorrow but for now i want to know what you guys think