Please read and tell me if I’m in the wrong??

Geri🇮🇪 • GeriHB Roscommon Ireland 🇮🇪 ..... Mommy to a beautiful little girl and a handsome baby boy 💙

So I’m meant to be a bridesmaid for my sister in 3 weeks and am 34 weeks pregnant, I’ll be 37 weeks pregnant the day of her wedding and had originally thought I’d be fine however I went into preterm labour last week (which thankfully got stopped) and have been absolutely exhausted with low blood pressure the last few weeks... after a scare at the doctors yesterday I made the decision to pull out of being a bridesmaid knowing she had plenty of people as back ups... I had thought she would be understanding and know my baby is more important but instead she went mad at me saying it was selfish and she has enough to worry about without this... what I’m wondering is if you think I was wrong and I should have chances it or if I was right not to?! Part of my decision was knowing my little one could come at any time now and I genus boy would not want to ruin her day by going into labour then I figured it makes more sense to have someone else instead who won’t be at risk of that! What do you all think?