My family makes me sad

So my sister and I have always had an extremely complicated relationship and she is extremely hard to deal with. She just says the most awful things and then acts like you’re crazy when you get hurt over it. When I told her I was pregnant, she was really mean. She told me that I am not going to be a good mother and how bad she feels for my kid for having a parent like me blah blah blah. So I haven’t talked to her since then. Well now she is pregnant too. I think she got pregnant on purpose after I did as a way to prove her point, but honestly all the petty stuff doesn’t matter to me anymore. I’m just sad that I can’t be pregnant with my sister :( we can’t talk about baby names or nurseries. Nothing :( I feel like my sister is just gone :(