Progesterone/Clomid TTC

Cat
Well 10/17 is the last day of my fertile window. My DH and I have been busy bunnies. Opk test was on point w/ Glow's peak prediction. FX that we will be blessed with a BFP. He has 2 kiddos from a PR, and I love them to pieces. However, we would love another. 
​How well has this method worked for those of you that have used it?
​Any advice or good tips?