Just be patient & she will eventually spawn (or crash your game).
Put the egg in your inventory & throw it at the ground in order to spawn her. You can spawn Jenny by finding the Jenny Egg in the creative materials menu. She won’t be her automatically when you find this house, you will still need to spawn her. Explore the world & look for a church-like building with a pointed roof & a golden bell at the top. Now that you have the mod installed, you will need to load into a creative world & look for her. Start a new world & make sure you set it to creative.Once Minecraft loads make sure that your custom profile is selected with forge-14 … Click the orange “Play” button in the top right corner & agree to the warnings about the game crashing.You should see the mod installed under “Installed Mods”.
Back on CurseForge click on your custom profile.Take the two mod files that you downloaded earlier & drag them into the mods folder.Inside of this folder should be a mods folder.Right-click your newly created custom profile & select “Open Folder”.Select Minecraft version 1.12.2 & keep the Forge version the same. Click “Create Custom Profile” in the top right corner.After you load the Minecraft files go to “My Modpacks” under Minecraft.Click on Minecraft & load all of the mod files & settings that are required to play the mods.When you are at the dashboard, navigate to games & find Minecraft. Click to download them from the devs Twitter. You also need to download the mod files.
This app makes it easy to install thousands of Minecraft mods for various versions.