opinions needed

Morgan
My boyfriend and I have sex fairly regularly and the last few times we haven't used condoms though I'm on the pill. We've done this before so I didn't think anything of it. The last time we had sex was during my period so I thought we were good. But since then I have thrown up, had cramps, spotting at one time, and we are both concerned I might be pregnant. It's been roughly a week since this. We have since gone to buy two pregnancy tests but I can't take them until 5 days before my period is supposed to come (if it doesn't skip). To ease our minds (or just supply us with an opinion) let me know what you think.