So Frustrating!!

Angel • My Husband and I have been married since Jan 15, 2015. We are pregnant with our 3rd and last baby (2nd together). We have a 3 year old daughter a 16 year old daughter from a pervious relationship and he has a 14 year old daughter from a pervious relations

So I started testing on CD12. I am now at CD 15 and as you can tell from my picture nothing...uggg all my apps are saying ovulation on the 25th, 26th and 27th...so at this point I will keep testing and see if I get a surge, but guessing just BD everyday for like the next week? What are your thoughts ladies??