Opk mess

So I started testing cd 8 to see when I ovulate. I'm not sure but last month was the first time I ovulated since having a baby and it was on cd 22. I recieved an almost positve opk not yesterday but the day before in cd10. It registered positive here but negative on premom. But the day after I got a few cramps in my right side and I haven't had ewcm this month yet. Also no bbt spike yet... Last month I had a week of it before I ovulated... What I was wondering is it possible I ovulated on cd 11 or not yet?