Not getting period! I can get my period?

* Hello, me and my partner had intercourse on 17th jan while which the condom get torn off so within 6 hrs i took contraceptive pill and on the 8rth day of taking pill i got withdrawal bleeding which last for 5 days(i.e., till 28th jan) * From my last period my this month period is supposed to be on 7th feb which i missed ,So i did pregnancy test on 8rth feb which is negative *Then i waited for cycle from withdrawal bleeding (i.e.,24th jan) my periods were supposed to be on 24th of feb but which is missed too...so to be sure i did pregnancy test(urine home-based kit test) again (on 26th Jan); and again the result is negative. * But still i didn't getting my period, but from last 10-12 days i am getting symptoms of period arrival(like lower back pain, breast sore etc.)but its not coming. What I am supposed to do or till when i can get my period? please respond It is creating so much of tension