Early period previous cycle - will ovulation day remain as of period came on time?

I have a random question - me period arrived four days early last month. This was very unusual for me. Because it started early, my peak ovulation day would be today, but I have been taking opk tests twice a day for the last few days and all are negative. My CM is also. It what I would expect at this stage. If my period hadn’t come early last month my peak ovulation day would be Sunday. Is it at all possible that I am actually ovulating on Sunday and that my early period was just a fluke and didn’t affect my ovulation cycle? Would love to hear others opinion on this! TIA! X