2 OPK'S in 1 month

I have been <a href="https://play.google.com/store/apps/details?id=com.glow.android">tracking ovulation</a> with temps and OPK'S. On cycle day 9 I got a positive opk, today on cycle day 13 I got another positive opk, with my temperature rising everyday since my first positive opk on day 9. Can anyone help me understand what's going on?