Losing my best friend because I'm pregnant

This is going to be long and I apologize.

I have had the same best friend for the past 5 years from college. Her husband and my fiancée are also best friends. We are often the exact same person and I always felt like I could go to her for anything. Her and her husband got married this past June and I was a bridesmaid and my fiancée was his best man. Needless to say it wasn't the most enjoyable wedding to be in in the world because she nitpicked everything and was never happy with the bridesmaids. I ended up spending over 200 the day of her wedding because my nails and hair weren't done to her standards. But I never complained and I acted as a best friend should, basically as a maid of honor. That next month my sister had a baby shower. She came because she was so excited for my sister. She even came to the hospital to see my niece because she was so excited. When a good mutual friend got pregnant, she was very excited for her as well and has done nothing but shower her with love and support.

Fast forward to this NYE, and her and her husband helped my fiancée propose to me. They set it up perfect and made it the most incredible night of my life. They even stayed over and celebrated with us that night and my fiancée asked her husband to be his,best man.

Three days after that I found out I was pregnant. Me and my fiancée decided to try one month and I got pregnant, which is an absolute blessing. I called her the night of and talked to her about it and she was nothing but supportive and talked to me about it for a couple hours as I was very scared and nervous initially. The next day she sent me a text telling me how much it hurts her that I'm pregnant, since they have been TTC since June and now they get to watch us celebrate having a child.

Since then it has been straight downhill. Anytime I see her or talk to her she basically ignores me. If I talk to her about wedding stuff, she basically tells me all my ideas are dumb.

Me and my fiancée decided to have a small wedding with a larger BBQ reception this summer before the baby comes in september. I asked her to be a bridesmaid originally but I am truly thinking about telling her not to bother. It really hurts me that my very best friend could be so mad at me for such an exciting time in my life.

I did reach out to her today, basically saying that it hurts me that we have lost communication and I really just want love and support from her but she never answered.

I don't know how to go about handling this so any advice would be greatly appreciated.

Thank you :/