TTC While Breastfeeding/Pumping

JJ

My LO is 9 months and we are trying for number 5. I pump 4x/day and LO feeds once or twice during the day and night respectively. I was on the mini pill for about 8 months and have been off it for 2 weeks. I have not had a cycle postpartum yet though I read it is possible to ovulate without one. Has anyone conceived under these circumstances?