1) I’m not entirely sure what you are asking but you need to realise the important differents between males and females gamete production…

Male gamete production only starts at puberty and it doesn’t stop… Also one spermatogonia produces four speratids (whereas one oogonia produces only one secondary oocytes)…

Female gamete production starts also starts at puberty but the numbers of primordial follicles degenerate until menopause when there is no more primordial follicles left…

Hormonal control ensures that only one secondary oocyte is released once a month and females reach menopause at approx 50 years females…

Also, spermatogonia don’t just produce sperm, they also produce more spermatogonia, so the supply never runs out.

The oogonia are all made sometime around birth, so it is a finite source (although I just read an article that asserts that this isn’t true). Still, I was under the impression that the idea that menopause happens when the original oogonia / primordial follicles are gone was no longer believed – that it was more of a straightforward timing issue.

But one thing I’m sure of: when you discuss human reproduction, there is a huge amount of conflicting information out there. Part of the problem is that actual studies of humans are almost impossible to do, and animals vary quite a lot and aren’t really comparable to us in this area.

for women it is once every month unless she is pregnant

One is how many get ovulated, usually, but not how many enter the cycle. Usually, 3-6 primary oocytes begin to develop (one follicle probably wouldn’t generate enough hormones), but one retards the progress of the others and becomes the only one to be released.