Blended families

Anyone else have a blended family? My fiance has 3 kids with two other women. A 10 year old daughter and 7 year old son (pictured). His 4 year old daughter is not in the picture because he just met her. Long story, but the mom kept him from her (she just needed a sperm doner) then we hunted down the kids info so he could take her to court years later. Anyway, I just gave birth to a little girl and it's so much fun seeing her brother and sister interact with her!

Hoping his other daughter will someday be in our lives, but the mother is very controlling and it doesn't look good right now.