How do I ask a friend to stop sending pregnancy updates?

I have a close friend we were both pregnant and due only a week apart I lost my baby (my third loss) she got to keep hers. I’m so incredibly happy for her. I love her so much and want to share in her excitement but every time she she send a bump pic or ultrasound photo I break down thinking about how I should also have a little bump of my own. She knows I’m happy for and I didn’t want to be the friend that can’t be apart of her journey because I’m to hung up on myself but I’m really struggling. This loss has been particularly hard to move on from she’s getting to hit all the milestones I didn’t and it just keeps it fresh for. I know that probably makes me an asshole…..would it be terrible to ask her to not talk about the baby unless I bring it up first? We mostly talk over text or instagram. For example I just got my period today so I’m not pregnant and already upset about being out this month and I just got her 13 week ultrasound photo sent to me and honestly it couldn’t be worse timing…..I just need to be prepared. I have been supportive texting to see how she’s feeling and wishing her luck at appointments ect….I do want to be there for her I just don’t want to be blind sided by baby updates if that makes sense….

**Edit ** I don’t think she’s being unkind or insensitive ect…I put on a good show when we talking. I say that I’m okay when I’m not and I’m doing my best to be happy for her so I understand why she wants to share her journey. It’s partly my fault for saying anything sooner.