first response digital ovulation tests😡

Ivi • Baby #1 due in July 2018! Our miracle baby after almost 3 years of trying and 8 IUIs❤️❤️ My miracle was born July 8th, 2018! Motherhood is one of the most challenging, yet gratifying life change I’ve ever experienced!
After testing all day with the first response dig ovulation test, I finally decided to just use my clearblue and easy@home cheapies.  I thought I was doing a good thing by getting FR tests since their pregnancy tests are good. Well, I had an ultrasound done this AM so I knew I was supposed to get a +OPK tonight since my biggest follicle was a 21.5 mm. Anyone has experience w/ this?