Maybe can try to ask your mum why she is treating you coldly after you are pregnant? It's quite strange because she should be happy that she is having a grandchild. Maybe you can also find things you like to do when you are alone. Next time you may not have the luxury for personal time.
Jiayou dear mummy thankfully you still have a husband that cares about you. You can try to talk it out with her. but most importantly your husband is the one that will be with you through the journey.
hang in there. We are all here with you. there is a telegram chat that where all the Dec mom gathers to share tips and encourage each other. u can join in. is called Dec 2024 EDD.