Anyone think AF was coming, but got BFP?

I’m 9dp and I’ve been VERY crampy today, enough to take Tylenol. I’ve had a “full” feeling in my pelvic area since 5dpo, but today it got bad. Anyone think AF was coming, but got their BFP? I feel like it’s very early to have AF cramps, but who knows🤷🏼‍♀️