Hi, i would like to ask you something. I miss my period, this is second month. Last time i had my period on 28 Oct. I had sex on 6th 20th 26 and 27th Nov, with withdrawal. I took 3 pregnancy tests first, at 2 day late, and 2 after 2 weeks, they were negative, then i was on doctor, she saw me on vaginal ECG(sorry i don't know to say it on English, and she said that i am not pregnant, she gave me pills i took them twice a day for 5 days, it have been one week since than and i still do not have my period. Can i be pregnant?