Postpartum periods

My baby is 6 months old and when she was 2 months I got my first proper period. That cycle was 50 days, then my next cycle was 34 days so I thought it was going back to normal and now I’m on day 36 of my cycle and still no sign of AF. Pre having a baby my cycle was about 31 days. Should I be concerned that it’s not returning to normal or does it take time for it to settle back to normality again? Would normally seek advice from a health visitor or GP but in these crazy times this is definitely not priority! I’m not breast feeding, never have, and I had an emergency c-section.