I am 17 years old and recently became sexually active in October, where my period was late and came the 30th. Since then, I have gotten my period on November 27th and December 25th. My last period had red bloot and big red globs, even if it started off with brown blood and seemed to me a little bit wierd. Today (January 22), I expected my period to start. I have had protected sex with a condom and no ejaculation every time- the last time he ejaculated into the condom was November 26th. My period is not here and my nipples have been sore and erect for the past two week. I have other symptoms as well, but I feel like I am imagining them. Could I be pregnant?