Should we IUI now or wait?

Becca • Newly pregnant through IVF, after TTC for two years.
 DH has low motility/morphology etc sperm. 
Doc put him on CoQ10. Our insurance only pays for 3 <a href="https://glowing.com/glow-fertility-program">iui</a>. 
Should we wait until his sperm analysis is better, 3 months from now? 
or should we go ahead and trust the sperm wash from the <a href="https://glowing.com/glow-fertility-program">iui</a>? 
TTC over a year.