How long should i wait after taking emergency after pill to have unprotected sex?

Wait until...: A common reason for having unprotected sex is to have a baby. Thus, a couple should wait until they are happily married, settled down, with stable jobs providing health insurance (because babies have lots of doctor visits and health expenses) before having unprotected sex. A second reason for unprotected sex is when both people know with certainty that neither of them have any STI (STD) germs.