Okay, there are just multiple layers of bad women's anatomy in the original post and in the comments.

Eggs are in the ovaries. Without hormonal birth control, generally one egg (but sometimes more and sometimes none) is released from the ovary, travels down the fallopian tube, and if it is fertilized, implants in the uterus. If it is not fertilized, it passes out of the uterus, the uterine lining is shed (that's menstruation), and the process repeats the following month.

There is no "grandchild" in an ovary, any more than there is a "grandchild" in a testicle.

And if a fertilized egg implants anywhere outside the uterus, that's an ectopic pregnancy -- which is not viable because only the uterus has the capability to grow with and provide nourishment to a developing fetus. Not only that, but ectopic pregnancies are generally fatal to the mother (or however that person identifies).