Support system = Parental Choices?

My mother and a close friend of mine keep bringing up the fact that I need to eat meat! I am a vegetarian and have been for 4 years. I am also in my 7th month of pregnancy. My mom has spent years telling me how being a vegetarian is “unhealthy” and says that is the reason why I am so skinny. The two of them continue to question me and act like I am denying my child a chance at a healthy life if they are a vegetarian.

Note: I HAVE NOT DECIDED IF THEY WILL EAT MEAT OR NOT.

My close friend feels like because he is “supporting” me (not financially) and my mom is also apart of my support system. They feel entitled to have a say so in how my child will or wont eat.