Ttc after Mirena

Hi ladies! I'm slightly confused on which period I should go off of since I had the mirena removed. I had my period 10-10 til 10-17. Got the mirena removed on 10-21 and then had another period from 10-23 til 10-27. Anyone have experience with ttcing after the iud? I've always have had the nuvaring but after baby #2 i moved to the iud.