Confusing OPK

Elle • 🌈 baby girl due April 2019

So I found out on July 22 that I was pregnant, but miscarried that same week on the 26th. Since there was no D&C;, I was given the go-ahead to try again as soon as I wanted. I tracked with the app and OPK just like I had the first time. Since my husband is away with the military right now, we literally bought a last min plane ticket for me to fly out to see him for my fertile week. I used the OPK's all week and got a positive along with the normal EWCM I always have. So I was out shopping just now and went to the bathroom and had a lot of EWCM. I immediately went home took take an OPK, and sure enough, it was a STRONG positive. My cycle has never been off before. I was tracking months before we actually started TTC. So I guess my question is, has anyone else ever experienced ovulating twice in one month? Or could I have gotten a false positive OPK last week? Or is this simply my body still trying to adjust after miscarriage? I am still new to TTC, because we got pregnant on the first try last month. And now I am very confused.