This app lets you seek like minded pro-procreation partners to pursue baby making. Controversial as it may seem, I bet people ready to start a family could benefit from it. Mind you, there are a lot of homosexual female couples only wanting ejaculate used for Artificial insemination. There are women who are looking to immediately get pregnant with the right guy and genetics play a big part in the process. Many of them are open to co-parenting if the chemistry is right. I have even seen one gal who wants semen to use with her egg in a surrogacy pregnancy because she is a model and doesn't want to put her body through a pregnancy. 
Controversially, there aren't pregnant women on the app. But the odds of finding a woman who is equally sexually aroused by pregnancy seems high. I haven't found anyone whose profile states this otherwise. But if you're bold enough to try, you might have a bit of luck.