Should I feel guilty?

My best friend had a miscarriage recently, and now that I found out I'm pregnant, she wants to be a part of everything. However, she doesn't like my baby's father. When she found out he wanted to be active in the baby's life, she told her mom she was upset that she didn't get to be "daddy". That just seems so selfish of her to me! She should be happy that regardless of the fact that the father and I aren't together, he's still stepping up and taking care of what he's a part of. She wanted to go to my first ultrasound, and I just don't want a bunch of people there. It's something I want to experience with the father), so now that I told her that, I feel like I'm a bad person. She was saying to me that she didn't get to experience it with her baby and now she can with mine and she's genuinely interested. But I can't help but wonder if it's for her gain or mine? When she found out she was pregnant she never once brought up inviting me to any of her ultrasounds. I told her she can be there for the birth, that I wouldn't take away from her, but I don't know. I have to clarify that I am extremely thankful for her companionship and so happy that she doesn't resent me for being pregnant, but she's not helping with me feeling stressed and she's just adding to the overwhelming feeling that I can't get rid of. She plans on trying again to have a baby, and as of right now I don't, since I really didn't know if I wanted to bring a child into this crazy world to begin with! :( I love her more than anything, but am I being selfish and ungrateful by not letting her experience this with me when her experience was taken from her? As dumb as it sounds, I'm a firm believer in Karma.