Best day/time to do follow up bloodwork?

[BigMax88]

I want to update my labs but can't figure out when I should book the tests. Here's my setup:

Day 1: 200mg test cyp. & 1mg Anastrozole.
Day 2: nothing
Day 3: 0.5mg Anastrozole
Day 4: nothing
Day 5: 250IU HCG, 0.5mg Anastrozole.
Day 6: 250IU HCG

When's the best time/day to do my lab work?

Thanks! Btw, I feel as if I have some ED still and erections aren't rock hard. I'm very anxious to get the results!