am i pregnant

I had sex 2 months ago and i took a pregnacy test and it was negative,I also went to the doctor and they also said it was negative.The past month my breast were hurting really bad and were too hard.My stomach now is hard could that mean I’m pregnant.People say it doesn’t matter if u have youre period or not you can still be pregnant.I had my period for the last 2 months.I really want to be pregnant.