Plenty more fish in the sea.. or not 🤔

Charlotte
Me and my partner have been trying to conceive for 11 months now. Although it hasn't quite been a year yet. we have told our doctor it has been a year to try and get the ball rolling...
My partner has had to do two seman specimens to date (6 weeks apart) both times it has come back with 'normal results but low volume' I have noticed he doesn't produce a lot (sorry TMI!) but I'm not sure if anything can be done about this or what the next steps are.. has anyone else experienced this?
I'm getting so disheartened every month we're not successful so any advise is appreciated 😔