Chlomid help!

Aimee • Hello! My dh and I have been married just over 3 years and have been tc for about 2.5. It`s not as easy as we had expected. Just looking for love and support! <3
So I'm taking chlomid. I was told to take 2 a day for 7 days starting when my period started. So when do I start taking the ovulation tests???