Anyone gotten pregnant while breastfeeding

LO is 7.5 months old & breastfed.

No periods back yet!

Last few days I've had cramps & super sore nipples whilst breastfeeding. The cramps did start the day after a bit of a rougher baby dance session. But feels like my whole uterus is sore. We have been regularly BD'ing (by regular I mean 2-3 times a week lol).

Has anyone had this & ended up actually being pregnant?