My wife is studying college so we plan to postpone baby for one year. But some time we done unprotected sex, so she has 3 months irregular periods. This month we done one time unprotected sex, but before my sperm come I stop it. She ate papaya, semseeds. But she did not get this month periods. normally she get periods on 5 th of every month. We test in home kit for 3 days. Result is negative. But till she did not get period. What we want to do now. We are confused. Shall you prefer any prescribe medicine. To get periods.