Need more ejaculatešŸ§

Ok, Iā€™ve read a million & 1 times that men with small amounts of ejaculate doesnā€™t mean a man is infertile. Iā€™ve seen that men with small amounts can be more fertile than those with a large amounts. But I canā€™t help but think my husbands small amount of nut is the reason weā€™re not conceiving. I mean, we watch porn often & Iā€™ve seen normal men with these big amounts they release.. Iā€™ve seen some with amounts that werenā€™t much too & my husbands amount is way less than that. We went for Sperm count testing but were unsuccessful being that he barely had any in the cup. Iā€™m no Sperm expert but I know thatā€™s not enough heā€™s producing to get me pregnant. He know it as well. What should I do? šŸ˜« And are there any things he can do & take thatā€™ll boost the amount of ejaculate he release? He does have 2 kids from a previous relationship. One isnā€™t biologically his (the oldest) & we just found that out last year so that mean he only MADE one son & heā€™s 5 years old. Maybe heā€™s having 2nd hand infertility or something? I donā€™t know what more to do, Iā€™ve been to the doctor & have meds to help aide me but I canā€™t be the reason by myself these past 3 years. And he doesnā€™t have any STDs, I know those lead to small amounts of ejaculate & infertility. He has before, previous relationship again. But I doubt thatā€™s the reason. Please help, I want this to be our year!