Back to back IUI sperm count. Help plz!!

Hi glow fam! Plz help. My husband and I went for our first IUI cycle this month. We did back to back IUIs yesterday and today. His sperm count on day1 was 15million post wash after almost 48 hours of abstinence and in day 2 it was 9.95million post wash after 23 hours of abstinence. The nurse who performed IUI 1 yesterday said that any Th omg above 10mil is good but that they do for people with less than 10mil as well. However, the doc who performed the IUI 2 today said that they’re good with anything above 6mil. Now I’m confused and worried about our count being low. Plz help. Has this happened to anyone? Do you think our levels are low? Honest responses please. Thank you.