The seven month old stage is fun. The seven month old can now sit by himself, likely, without any support. Your seven month old is getting ready to crawl. They may crawl, but most of them at this point will just lunge forward.

Your baby is now developing stronger preferences, both for toys and for people. This is where we find that stranger anxiety develops. Your baby is now making all different sounds.

Your nine month old is probably pulling to a standing position, so when you go in in the morning to say good morning to your baby you may find him standing up, holding on to the sides of the crib.

Your baby is developing more of a personality now. His opinions and he has preferences. He knows what toys he wants and he knows what people he wants. Stranger anxiety gets much more intense at this point.

Your baby now has more hand gestures, so there's more waving; there's more clapping, and there may be clapping to music. Your baby may now be saying mama,dada, specifically to Mama and Dada.

This here is a sling and this is a really nice one because it is adjustable. So you can share it with your partner for different sizes, body sizes. And alot of slings are not as versitile as this one, they are more of a basic sling without much adjustability.