Regulation after stopping BC

Candi • Baby one born March 2016! Was TTC for 20 months. Baby 2 born 6/2019. TTC for 20 months. Now TTC baby #3. Scar on my tummy is from surgery I had as a baby.
Hi I was wondering about periods regulating after stopping BC. We've been TTC for 6 months. December was a normal period, January was 41 days, February was 33 days, March was 31 days and April/May was 46 days. Before BC I was 29-32 day cycle, during was 28 of course and after it's been like above. Is that normal? The weird random long cycles? I was stressed about getting pregnant the first few months but the past couple months haven't felt worried at all.