Thank you for your question. There canbe several reason why you haven't had a period yet. The first step is to see your gynaecologist and confirm that the uterus is empty. Although your home pregnancy test is negative it is always better to rule this out. If its all clear your doctor can do some tests and prescribe tablets so you can get a bleed. It is important to talk to them about ongoing reliable contraception in addition to condoms as it is much safer to prevent an unwanted pregnancy than it is to have an abortion. best wishes