Cramping before af bfp

D.

Af is in due in 2/3 days. I honestly have stopped trying and tracking. But I was at work and had this sharp stabbing sensation on my right lower abdomen. Not a cramp but i had to bend over for a while. It went away then came back but I haven’t had it since. This evening I’m starting to have dull af cramps. Has this happen and you went on to have a bfp ? Or is this af .