Early ovulation?

So bit of back story- I got pregnant first cycle off the pill then had a miscarriage, took 9 weeks for my period to come back then was 5 weeks till my next period. Basically I have no idea where my cycle is at but before I went in the pill my cycle was 5 weeks so I’m thinking I have gone back to this? Anyway if this is the case, I’m not due to ovulate until Monday. This Monday just gone I had ewcm probably the most obvious I have ever had. Is there a chance I have ovulated earlier than expected or may be just an irregular cycle? Has anyone else had ewcm a week before ovulation? I haven’t had it since. Thanks!