This page has pointers to some research on the most commonly asked about topics. It's a good starting point to browse! You can also just go straight through their Research index page.
The Guttmacher Institute is a leading research and policy organization committed to advancing sexual and reproductive health and rights (SRHR) worldwide.
Use the filters at the top of the page (by the target icon) to narrow down, or just click on parts of the data visualization (e.g. clicking on Texas will change the rest of the data).