Calculating Ovulation HELP???

So I had a larger follicular cyst on my right ovary way back in November and it really messed up my cycles for two or three months but then I went back to normal. I was just continuously getting my period early according to glow but each time I counted out the days that I recorded and every time I had a 28 day cycle for about three cycles. However suddenly out of nowhere I had a 24 day cycle (due to a ton of stress most likely) and now I'm starting a new one. I have absolutely no idea when I ovulate but I think it's within the next few days. Can I just count on having a shorter cycle this time or will it go back to normal? I'm sorry if it's a stupid question, I've just never had irregular cycles until now and it's very worrying because my husband and I have just started TTC.