4-7 days after your missed period
It takes a while for that hormone to start in your body. Although, it's normally about two to three days before your period would normally start.
It's random when refreshing the page. A real pain.
I am not sure how many days, but don't go on neopets for one week and then you you get back you pet will be dying
It's at the door leading to another part of Moltara.