So 36 hours before the egg retrieval I have to do what's called a "trigger shot" with the injection Ovidrel. Basically, it tells my body to get prepared for the retrieval by letting my eggs prepare to release. I have heard good and bad about the trigger shot, so I was nervous. It was a sub-q (short needle) so I'm thankful for that! It could have been a huge needle! I had my husband give me the injection in my tummy and it wasn't bad AT ALL!! I hardly felt a thing! Nice!!