Erratic cycles *worried*

Hi all, I went off BC in May. Had a normal 28 day cycle in June. July was 35 days and had positive LH tests multiple times. August was 26 days with a clear ovulation and 13 day luteal phase. September? 19 days. Early confirmed ovulation. 8 day luteal. I cried on the toilet when I saw. I’m so worried that as my cycles shorten, this means my fertility is waning. Can anyone share where they had a similar experience after ending birth control? Did you still go on to get a BFP? I’m feeling so disheartened.