Btw how do you get pregnant from Rinny i haven't figured it out
First you need to see Rinny grow a penis at least once. There are many ways to do so, but by far the easiest is to just enter Transylvania from anywhere else, enter the tower, tell Rinny "no" 6 times when she asks if you want to have fun, and scroll to the bottom of the list that appears.
If you took a pill beforehand, you'll even get pregnant on the first time viewing the scene.