Clear blue fertility monitor

Stephanie • Me 36 hubby 39 Ttc baby #2 for me. #4 for him! (Yikes;) DD Eliska Kathryn born 8/13/2014
Anyone using/used this? I bought it used off eBay but it's in great condition. I'm on cd8 and I can't wait to see if this helps me get my bfp. I would love to hear some feedback.