What testing can I get done

Hayle • 5 yr old daughter. 1 👼🏼 1-23-19. Ttc baby #2.

I had a vaginal ultrasound and it was good. Blood work done it was good. Husband checked and the only issue is moderate viscosity. He has been drinking water like crazy. I'm not understanding why it taking forever. What other testing can I have done to rule everything out?