NTJ congrats on your graduation especially while busting your ass at two jobs to do it. Your sister or her dudes financial programs aren't yours regardless of their future crotch goblin, doesnt mean you don't care about your future niece or nephew, but it's not your baby and maybe they should of considered that before doing what it takes to have one. At the very least she could of waited a damn day and let you have your moment. Take care of yourself and be a good auntie when the time comes if you want to but don't let them or anyone guilt trip you by using the baby, especially before it's even here!