Has this happened to you?

I’ve been having this weird aching sensation in my uterus off and on. It started like 5 days before my expected period so I just assumed it was af about to come but it still hasn’t showed up yet and the sensation hasn’t been really noticeable anymore. It’s unusual for me to cramp or anything if I’m not actually bleeding. My boobs/nipples are also tender to the touch. Has this happened to anyone and they ended up with a bfp?