TTC 35 day cycle

So me and my husband started try for baby #3 first pregnancy was twin boys. I stopped breastfeeding about 4.5 months ago and have had my periods back since Dec 2020. They have been a little abnormal while breastfeeding but seem to be going back to normal. I have been using OPKS but not sure if I ovulated or not, not good at reading them. How long did your cycles take to go back to normal? If my cycles lengths vary could I not be ovulating again not sure with stopped breastfeeding 4.5 months ago? Any advice thanks below is my cycle dates and lengths