You can get pregnant after you ovulate of course. This is the time wherein the egg is fertile. When you ovulate, there’s a chance for you to get pregnant. A week is enough for the egg to ovulate and for you to know that you’re fertile. There’s also a sign wherein you know that you’re fertile and it is when you see some yellowish spot on your undies. To be sure try having some diagnostic test kit around for an appropriate result.;)