My son looks like my ex husband

So I have a 5 month old that favors my ex husband. So much so that my fiancé asked for a DNA because everywhere we go people comment how much he looks like my other children and my ex. Even my own mother has asked me several times if I’m sure because the baby looks so much like my ex husband. The DNA test of course showed that the baby is my fiancé’s. Honestly even I see a resemblance. He has the same hair, skin color, eyes, etc as my ex. He looks completely different from his daddy and I.

I am not angry at my ex for asking for a DNA. I was still not divorced when I got pregnant, although we had already started the process. He said he was about 98 percent sure but just wanted peace of mind with what everyone in town was commenting. I guess my question for anyone is if there babies look different from them?