I have done iui on 21st march & 24th march with hcg trigger ovulation and 2 eggs rupture. Have got another hcg injection on 30th march & is on progesterone & aspirin. My progesterone level is above 60 on cycle day 21. My period is due on 6th/7th but my Dr. is saying to have a hcg shot again on 6th. I don't know why. When can I go for hcg test to check my pregnancy. Need some guidance.