Could I possibly be Prego?

On BCP for 3 years. Stopped at the end of my pack and started immediately. Period Aug 28-Sept 3. Glow said I would ovulation on Sept 12th (but of course this didn't account for stopping BCP). I tested LH with ovulation strips and got 2 "high" positive days but no peak around the day glow said I would be ovulation. BD'd just in case. I continued testing and actually got a peak on Sept 20th. BD'd all around this date also.

But I've also be tracking bbt and I'm just getting a zigzag pattern. Nothing to seem like I ovulated. Is it possible that I could have a peak on ovulation strip but not release an egg??