Chances of naturally conceiving after 4 years

My husband and I have been TTC for 4 years.(one miscarriage a year ago) Now that we are getting older(24 and 27) we are ready to speed things up.

Do y’all think there is a chance we could conceive on our own?

I have a clear temp shift, positive opks, regular cycles, blood work is good.

Seeing a NaPro doctor in December. I’m sure they will do an hsg, recheck bloodwork, and hubby’s semen/sperm.

Any recommendations for ttc between now and then?

Any recommendations for what to have them check for?

Thanks!