TTC Baby 2 on Clomid

Amy
TTC Baby 2 on Clomid (2nd round) after a year of trying.
Ovulation tests have been a bust, so having sex every other day and waiting for Day 21 progesterone levels to confirm ovulation... Also when I also start Prometrium supplements. Period due Sept 1. 
This whole process is so frustrating, but here we go again!