Bfp but cramping?

Hey all, I got a bfp two days ago on a pink dye and a bfp on a clear blue digital today. AF due tomorrow but I’m having some cramping. Dull, no spotting. But I still feel like she’s going to show up. I’m paranoid because of a chemical I had a couple months ago. Is cramping around AF even with bfps normal? So scared :(