Curious

I quit taking birth control in March because I had been on it for 5 years and have had horrible side effects and was bleeding almost every. Tried every option nothing worked. I got my first period after stopping the pill and it was normal. I havent had my next period yet, and my nipples are super tender.. like even putting a bra on or shirt just touching them kills. I’ve never had that before. And I’m super thirsty like no matter how much water I drink I can’t get enough. I’m tired and get random upset stomachs but not to the point of vomiting. Could this be related to stopping birth control? Or could I possibly be pregnant? I should have had my next period by now but I know stopping the pill can mess you up so do I buy a test or just wait and see?