Re: Nursing while working
I always dressed for nursing. Wear 2 shirts- a camisole and a button up works really well, but anything works as long as you can pull one up and one down. I also took some of those men's undershirts and cut vertical slits over the boobs and wore them under other shirts so I could pull my over shirt up and not reveal anything other than just enough boob to nurse.
You might also try practicing in front of a mirror. It helps build confidence and I bet you'll be surprised at how little you can actually see.
Another option is to wear baby in a sling or carrier and nurse while he is in there. It's really hard to see what's going on unless you're looking too hard (which I doubt your dad will be).
“We are not put on earth for ourselves, but are placed here for each other. If you are there always for others, then in time of need, someone will be there for you.”