IUI... IVF.... or keep trying naturally

These are hubbys last SA results. They have improved and we have been trying for 10 month with no success. He is taking fertilaid and maca. I have a referral to go see a specialist but the cost is high just to even speak to someone. I have regular cycles and have had no known issues. I guess my main question is do you think I could conceive naturally with these kinds of motility numbers soon? Or would IUI be a better bet? Or just go straight into IVF. Just looking for some help before paying to talk to someone just for them to tell me to keep trying naturally 🙃