because the ovaries stop realising eggs
Yes, you can stop getting your period.Obviously pregnancy would stop menstruation, and some health conditions could stop menstruation. If you wanted to stop menstruation you could use menstrual suppression or have a hysterectomy, obviously both of these are risky so only done as a last option.
No, there is no ovulation or menstruation during pregnancy.
Probably not, however there have been cases of pregnancy and a mild menstruation during first trimester of pregnancy.
The same thing that causes pregnancy after menstruation: sex.
Menstruation and medication
You buy a pregnancy test.
Slim to none.
this could be pregnancy or stress.
Only females are affected by monthly menstruation.
If the egg is fertilized that means pregnancy has taken place. Hence, no menstruation.