No.
I know you must feel bad about having to turn down two invites to two events with Group #1. But, you're a nurse! You *have* to work those hefty shifts! And really, shouldn't she be giving you a little more advance notice?? If you want to try and make it better, how about you suggest days and times to *her*? How does that sound to you?
As for Group #2 and September 17th...that's your *honeymoon*!! I hardly think that anyone will be mad at you for going to your own honeymoon!
I don't see how having valid schedule conflicts makes you a "bad" PNAM. How about this...maybe you can e-mail each of the Presidents and thank them again for their invitations. Tell them how bad you feel about having to miss out. Tell them you are still definitely interested and that you want to try your best to find a date everyone can agree on.
Don't worry Jenn, I'm confident that you'll get it worked out yet!
PNAM hugs,
.....Kelly