3 y.o. daughter doesn't want to sleep in own bed since new baby

Alyssa • STM - 3 year old daughter and baby boy on the way ❤
Hi there, I'm 8 days PP with a little boy and my 3 y.o. daughter has recently been fighting kicking and screaming going to bed in her own bed. She used to go to bed normally and without a fight but, now she tells "my daddy" and "my mommy" and will get out off her need and scream hysterically. Its heartbreaking and we expected it but, any advice on how to help with this is appreciated!