Could I be pregnant?

Okay so on December 9th I stopped taking my birth control. It was the end of my third week and I skipped taking the pills that make you have a period. I wanted to get off birth control so my body could get adjusted because my husband and I want to start TTC in the next couple months, but until then we weren’t really going to take any precautions. I’ve actually always skipped the fourth week of pills because I’m pretty bad at taking medications and always forget.

The past few days I’ve been feeling sick to my stomach a lot and getting headaches. My boobs have been a little sore as well and I’ve been crampy. We did have sex right after I stopped taking the pills and a few times after that, just trying to figure out if I’m just feeling period symptoms, pregnancy symptoms or maybe a stomach bug? I don’t really know when my next period is due so it’s a little hard to track.