Ovulating twice in one month????

So, I have been using the digital OPK the past couple of month, but this month I have had 2 peak results. The first picture below was on 3/5 and 3/6 for my peak period. The second picture is today (3/10). I had negative results from the 7th -9th but felt like I was ovulating again in today so I kept going with my tests..sure enough, another positive! My last pregnancy I thought I had a miscarriage but found that baby was fine. Later, they determined that I may have been carrying twins and that the second baby wasn't viable, it was too early to tell at that point. Could this be why? Could I actually be releasing 2 eggs 5 days apart? Help!!