Could I be pregnant?

I'm not trying to conceive I just happened to end up on this page and posted on here (I'm new sorry!)

I stopped the pill a while back and have finally started getting regular periods again. Me and my boyfriend now use condoms and we have sex every night/every other night. My last period started 14th and ended 17th november, was fairly light but on the saturday (15th)  had such bad cramps and bloating I had to go home from work as I couldn't sit still and just wanted to lay down.

It's now the 25th and I'm feeling extremely exhausted, tired, very moody and have back and stomach ache and cramps, I also feel nauseous in the morning and taken a strong dislike to butter (maybe it's a different brand I've turned against haha!)

We use condoms though so I know it's highly unlikely, just very confused!

Was wondering what other peoples opinion are!

thanks  xx