The pill? IUD? Condoms? Vasectomy for my husband? Point is, you have lots more choices than women did a hundred years ago, when the only way to prevent pregnancy was to go into solitary confinement.
But deciding on which is the right one for you may not be easy. But before you go to ask your doctor, it may be an idea to read through the following extensive section on contraception.
If you still feel uncertain, it may be an idea to post a question to GynaeDoc's Forum to get an answer to your specific query.