Hi! The first day of my last menstruation was may20 or 21.. I have irregular menses.. Me and my boyfriend had unprotected sex may29.. Then we did it again may31.. I checked the net and found about nordette so i took 4pills 8am and 8pm of june1.. All i felt was bloatedness and occasional nausea. Right now im still waiting for my bleeding but we had unprotected sex again last night june3. I dont know if i should take another 4-4 batch of nordette for this last sex we did.. Im actually nervous that i might get pregnant. I am planning to use birth control pills but im still waiting for my next menstruation.. Can you help please? Should i take another batch of 4pills-4pills of nordette? Or would the dose that i took last june1 would suffice? Thanks!