In humans, the number of eggs is set at birth. I but the first meiotic division is not completed unless the meiotic process is reactivated by hormones at puberty. Meiosis stops again in the secondary oocyte stage. In humans, penetration of the oocyte by the sperm activates the second meiotic division and the separation of the second polar body from the ovum. In humans, the number of sperm is not set at birth.
Production is continuous.
There are no delays in the completion of spermatogenesis. It is an uninterrupted process.