Chart Confusion, help!

Hello ladies! This is my first time TTC with irregular periods and my chart is based on a 32 day cycle- which is typical, 29-34 days. Anyways, I've been using a ClearBlue Digital opk and I just got a peak, after 12 days of testing! This shifted my expected period back 2 weeks, making my cycle like 45 days, which isn't normal. Help! I haven't tracked any other cycles, could it be that I just ovulate late in my cycle? Thanks so much!