Anyone know......

Does anybody know if its normal for the babies to not look the same in the beginning. I just found out I am having twins and I have to go to a diff doc tom than the one I went to before. Anyway here are the pics they r seperate BC one was hiding behind the other. Just curious I am kinda paranoid about it so plz only answer if u know wat ur saying is accurate or I will just have more reasons to freak out lol