My hubby gets ejaculated soon, but he want to do he sex more...could u suggest not to ejaculate the semen soon?

There are treatments: He could visit with his doctor to explore treatment options for premature ejaculation. There are some medications that can help (ssri), and even topical anesthetics.

Premature ejaculate: Topical anesthetics and low-dose selective serotonin reuptake inhibitor can work great. The best is something you do together called the "Squeeze technique", which reprograms him. It's a lot of fun for both of you. Read about it online. https://www.promescent.com/content/52-premature-ejaculation-therapy-start-stop-squeeze-technique