Sister jealous of me

Some times I feel weird to be around them and be around my parents at the same time. My sisters are always saying how my parents love me more and how they prefer me and they’ll do anything I ask them or get me anything I ask for. It makes me feel like they don’t like me sometimes. Me and my older sister are both pregnant she’s 4 months ahead of me but since we told them o was pregnant she kinda seemed upset. It’s both or second baby. She also say my mom likes my baby better than her baby. I feel like she doesn’t like my baby either