Ovulation questions for someone with an irregular period

So I glow said I start my peak ovulation day on the 12-13th of this month but I’m getting these readings and I got my last period April 28th to May 4th I’m thinking glow was wrong and my ovulation might have started on jun 22 not my peak day I’m so confused because lot of the time I feel like I’m on my period even though I do bleed or I feel like I’m ovulating does this happen to anyone else should I keep testing or should I stop and waiting until the 22nd of this month????? Please help and thank you in advance