when did I ovulate?

Jay🌙✨💜👧🏻👦🏻🤰🏻 • I'm 29, married, and mother of 2. Pregnant with my third which will be me and my husbands first child together. I love to coupon!!! Baby #3 due 2/22/18!!!
So I got 2 positive opks one Wednesday and one Thursday. I BD on both days just in case. I'm going to take another opk today just in case to make sure I'm not ovulating. I logged it on glow both positives and it said it won't change my ovulation days cause I had 2 positives. I wonder when I really ovulated then???
Bottom is cd 15