OPK newbie.... need help!

Hannah
I only took one test a day and missed 1/28..... this was my first time ever doing opk's but all were taken in the evening. Wondering if I missed my surge? 
*Background: the day before I started testing, my dr. said my bloodwork came back with high LH levels, but I'm wondering if that's because I was ovulating? There are the darkest lines l've had so far, and they were right after that dr. visit. I haven't had a period since November, but I've been taking vitex for the past month. 
Wondering how many dpo I am or if I even ovulated.