i had unsafe sex (without condom) with my girlfriend on 21 oct 2014 on 2nd last day of her manses period and i left the sperm inside her.Then i give her a tablet unwanted 72 tablet of unwanted pregnency. according to her normal manses period she should have manses whithin 20 nov 2014 to30 nov 2014 but she has no manses till now.we had checked for pregncy with pregnency tester its result is negative. please tell me how she can become normal manses periods