I am 22 year old unmarried still studying. Actually I didn't got my periods from 56 days. I'll be travelling around 160 km for college everyday. Last time when I had periods on 25th of june and after that I didn't got my periods yet. On 27th of May I had unprotected sex with my boyfriend and I neither took any emergency contraceptive pill nor used condoms but I got periods on the very next month. Now because the periods were missed I had a doubt dat I might became pregnant nd had done pregnancy test twice in this week using I can nd preganews pregnancy detection kits both the times it gave negative result only. Now tell me is there any chance that I am pregnant or not because till now it has been two months I got periods. If am not pregnant then clarify me what might be the reason behind missed periods. Please help me.