I think my friend is distancing herself because I’m pregnant

I’m 27F, my friend is 39F, and we used to be extremely close. I was also very close with her daughter. She struggled with infertility and had her daughter through IVF, and she has decided not to have any more children.
I’m currently 24 weeks pregnant with my first baby, and I feel like she has completely pulled away from me since I got pregnant.
When I told her very early on, she repeatedly told me not to get excited because it was still so early. I tried to understand because of her history, but it really hurt, especially because I was already nervous and just wanted my friend to be excited with me.
Since then, I’ve tried multiple times to make plans and there is always an excuse. The most recent time she told me she’s “busy for the foreseeable future.” I don’t see her or her daughter anymore either, even though we used to be close. She has also gotten very close with a new best friend, while she hasn’t checked in on me once during my pregnancy.
I’ve tried talking to her about the distance, but she won’t really give me an answer.
The reason I suspect my pregnancy is part of it is because I know how difficult infertility was for her. She has also said before about another woman getting pregnant, “it pisses me off, she doesn’t deserve it.” I’m not saying she feels that way about me, but the timing is hard to ignore.
My wedding is also in two weeks. She’s invited because she was someone I considered a close friend when I sent the invitations. She hadn’t RSVP’d, so I texted her and she responded, “I already told you weeks ago we were coming.” Maybe she didn’t mean it badly, but it felt really cold given everything else.
Now I honestly don’t want her at my wedding. I don’t want to spend the day feeling uncomfortable around someone who has basically stopped being my friend.
I’ve tried reaching out, talking to her and giving her the benefit of the doubt. I’m just exhausted from chasing someone who doesn’t seem interested in maintaining the friendship.
I don’t think she’s wrong for having complicated feelings about my pregnancy. I think she’s wrong for how she’s treating me because of whatever those feelings are.
Would you stop trying and let the friendship go, or say something to her one last time?