weird low abdominal sharp cramps 8dpo

Sara • TTC #1 for 1.5 years with MFI.
I think I'm 8 or 9 DPO, and having some weird lower abdomen sensations. I don't want to say AF type cramps, cause it feels nothing like AF cramps, but it's definitely a crampy/sharp pain type sensation. This is month 4 TTC and this is the first time I've felt this before. No spotting. Has anyone else gotten this sensation and ended up with a BFP??