IVF is the most effective form of assisted reproductive technology. The procedure can be done using your own eggs and your partner's sperm. Or IVF may involve eggs, sperm or embryos from a known or anonymous donor. In some cases, a gestational carrier — a woman who has an embryo implanted in her uterus — might be used. Your chances of having a healthy baby using IVF depend on many factors, such as your age and the cause of infertility. In addition, IVF can be time-consuming, expensive and invasive. If more than one embryo is implanted in your uterus, IVF can result in a pregnancy with more than one fetus (multiple pregnancy). Your doctor can help you understand how IVF works, the potential risks and whether this method of treating infertility is right for you.