4 days late

My husband and I recently got married in January. I got off of the pill after being on it for 9 years. I was thoroughly impressed because I bounced back quick. I had a normal period in February.

I was I concerned because I thought it would take me some time before my hormones to level out and for my period to come. So I’ve basically had three normal cycles since February.

Side note: when I was in the pill I would get these awful abdominal cramps and I thought it was gas related. Ever since I have gotten off the pill I have not had that problem.

So I was supposed to start Thursday/ Friday. Friday evening I noticed those cramps again. I am now 4 days late with a weird feeling in my stomach as if I have butterflies. I also had mucus discharge today which isn’t normal. Right before I get my period I am always super dry.

I have taken 2 tests and negative. What do y’all think?