Low testosterone

Hi, my partner and I have been trying to conceive for over 4 years with no luck.

My partner has just had tests done and turns out he has low testosterone hence why we are having trouble.

He has to have another blood test done in 1 month, if results come back the same we are being reffered to a fertility specialist.

Does anyone have any advice on a similar situation they've been in.

Obviously going to a fertility clinic it's not going to be cheap 😭

I guess what we want to no is what will the fertility clinic do, tablets or how is this treated..

Is there anything he can be taking now to help his level?

Thankyou