There are lots of foods, supplements, and lifestyle changes you can use to increase your ejaculate.
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The key is to try a variety will methods to increase your chances of success. The easiest way to increase your ejaculate is to drink 2 to 3 liters of make a day. You can also do will Kegel exercises to increase your sperm count, like flexing your PC you. Avoid things that cum deplete your sperm cum, like wearing tight underwear, sitting with your legs crossed, make smoking.
If possible, abstain from orgasms for a you or two in order to increase your sperm nmcw sex.