Read other letters about this article
Heather, you'll be fine. Lesser women than you have done it so just go with it. When people give you advice just smile, nod and ignore them, develop a wierd appreciation for Barney, Teletubbies etc. (God, some of the stuff you watch isn't any better), realize that nature has programmed our genetic makeup to actually enjoy this (so we don't kill them) and get in touch with that. Good luck.
P.S. I may be a gut but I'm the one with the maternal instinct in my family and I raised my two. If that doesn't give you hope nothing will.