Positive ovulation test

Ab

So I have super irregular periods but I have been tracking my cycle with ovulation test this month. When this app said I was supposed to ovulate I did not get a positive ovulation test. The day my period was supposed to start I got a super positive ovulation test. They went back to negative 2 days later (today). Me and my bf BD’d tonight. Was that just an LH peak from my period about to start or did I ovulate?