Hi Megan I'm not up to the IVF stage yet but just wanted to say that most of the ultrasounds you undertake will be internal. Its just one of those unpleasant things you have to do! IVF comes in many many different forms. There is the though of IVF - where they take your eggs and fertilise them outside of your body and put them back to IUI which is insemination at ovulation. I think maybe you need to see which it is your dr is actually talking about. As you have unexplained infertility I doubt you would be going onto the most complex form straight away - well I would be surprised if you would!