Quantity. You're most likely to be fertile if your ejaculate — the semen discharged in a single ejaculation — contains at least 15 million sperm per milliliter. Too little sperm in an ejaculation might make it more difficult to get pregnant because there are fewer candidates available to fertilize the egg.

Does ejaculating multiple times reduce sperm count?

More frequent ejaculation lowers sperm count but is unlikely to affect fertility in healthy males. A 2016 study examined the sperm counts of three males who abstained from ejaculating for several days before ejaculating four times at 2-hour intervals. ... Males who ejaculated daily saw declines in sperm count.

Does multiple ejaculation lessen the chance of pregnancy?

Pregnancy Myth #10: Can ejaculating numerous times lessen the chance of pregnancy occurring? The number of times ejaculation takes place can decrease the amount of sperm in each ejaculation, but there are still millions of sperm present.