Variation on Cycle Days

Emily • 😁💖💎🦄💫👑

ladies. I have noticed a pattern in my cycles. every other month I go into 31-35 day cycle and every other month im pretty much bang on 28 days. Do you think this means that potentially I may have something wrong with one ovary. I've been ttc for 8 months. I am now going to stop and go back on the pill in the hope it can 're regulate my cycles and also I don't want to be pregnant when I get married. Does anyone have any knowledge on alternative month cycles and having this pattern xx