birth control question

Holly • 👶🏼 born 10.29.16 🌈👶🏻born 12.04.19
I'm on the mini pill since I'm breastfeeding. My daughter is 2 1/2 months old and I plan to breast-feed for a little while longer but I'm not liking this birthcontrol. I had two periods already and now a couple days after the second one ended I have another one... i've never had this problem on birth control but I know it can happen and it really sucks. Has anyone else had this problem with the mini pill???