Pregnant on mini pill

Just wondering if anyone got pregnant while taking the mini pill. I’m almost 6 months postpartum and have been on the mini pill since I had my daughter pretty much. After my first pregnancy I got my period 6 months postpartum roughly. The past 3 days I’ve been feeling really nauseous in the evening and morning. Past 2 days have felt really crampy like I’m about to get my period but no sign yet.... I have a 2 year old and a 6 month old man another baby right away would be a lot for me to handle. I mean every kid is a complete blessing but not ready for another yet...