At-home, mail-in fertility testing is on the rise as more women take control of their eggs

As more women put off starting families and U.S. fertility rates drop, helping women assess how much time, and how many eggs, they have left to conceive is a growing business. The market for ovulation tests, fertility monitors and other mail-in home tests to help women up their odds of bearing fruit is exploding. Several startups are selling kits that allow women to test their fertility at home with a simple finger prick.