Puppy and new baby

Hey ladies! So I’m 25 weeks pregnant and i have a 6mo old puppy. I don’t currently work so I’ve been home all day everyday with her from day 1 - with that being said, she is extremely attached to me. I was just wondering if anyone had any advice on when it’s time for baby how to get her used to the new addition?! I’m nervous because she isn’t a vicious dog, at all, but she is very protective of her mama. Any advice helps😊 thanks everyone!