My daughter is eleven and just within the last few years her father and I have both got married and pregnant. I have had no qualms with her step mother until now. There baby was born April 30th, and they got newborn/family photos without my daughter. To add salt to the wound they were posted on FB where idiots from the step mothers family were making comments like "baby makes 3"!
It's bad enough my daughter's father is an idiot who doesn't consider his daughters feelings. So, if any of you are in this situation, It would be thoughtful to include your step child in at least one photo.
Re: Step moms (rant)
The worst part is my daughter says that it doesn't bother her and she wishes I'd quit making such a big deal about it. She's all protective and a daddy's girl.
I would seriously hope a grown woman wouldn't do something on purpose to hurt an 11 year old! If you see a habit of your daughter's feelings getting hurt I would have a talk with them and let them know how they are making her feel. On the other hand I wouldn't blow this up any bigger than it needs to be if it is a first offense, you don't want to give DD a complex. Keep an eye on things and hopefully the new baby phenomenon will wear off and things can go back to normal.
Being a stepmom is extremely hard. I would hope she would never intentionally hurt your daughter like that. And I agree with PP's that it's definitely best if you don't bad mouth her dad and make a big deal out of it if she isn't expressing a huge amount of hurt. It would probably just fuel the fire!
Good luck, blended families can be
tough!
Edit: clarification. And it's late...