Am I being the dreaded bridezilla?

I got engaged last May and my wedding is coming this September. I picked out my bridal party easily, without stressing, sent them fun little "will you be my bridesmaid" boxes and they all said yes. I wa so excited and wanted to be able to share in my excitement with them and I'm finding I can't. I have all vendors locked down, linens and China picked out, flower arrangements agreed upon, dress bought, save the dates and invited picked out/done.... All of it! And none of my bridesmaids or MOHs were a part of it. No one asked to help, no one was able to go to anything with me, and my mom is trying to get them to pick a weekend for my bachelorette party (she's throwing the shower and wants to book the venue) and they are really dragging their feet. It was even suggested that I make invites for the party... By one of my bridesmaids. I broke down and cried yesterday after my maid of honor said i was being a bridezilla. She got pregnant a month after I asked her to be my moh. She told me yesterday she can't attend the Bach party or the bridal shower bc of her newborn. I don't have kids so maybe it would be too hard, but when I asked f maybe she wanted to opt out, she said no and she really wants to be a part of the wedding. Isn't she being selfish (or am I?)? Am j really being a bridezilla? I am starting to regret having a bridal party...