You are very fortunate. There are tons and tons of things for you to do - take a class - and it doesn't have to be a hard educational class - many local community colleges offer just for fun classes - such as various crafts like floral arranging, home decor, etc, as well as cooking classes, various kinds of dance and other languages.
Also there are so many organizations that need volunteers - hospitals, animal shelters, etc. Find something that you enjoy and you will be blessed by any volunteer work, I am sure.
I am a SAHM of an older child - she will be 11 in the winter. So she doesn't need me as much as when she was younger, so I find lots of things to do during the days. I don't really get bored, there is always plenty to do - I do enjoy cleaning the house and doing the laundry (not every day, don't laugh). It just makes me happy to take care of my family. But there are other things I do, like sometimes I will go to a movie during the middle of the day - especially if it is a "sappy chick flick" that I know DH won't be interested in.
I am looking into a
travel agent certification class - not for the benefit of finding a travel job, but for the enjoyment of it.
I am sure you will find many things to do with yourself. Enjoy the time!! And don't let anyone tell you that you are of less value because you don't have a job. Do watch out, because there will be plenty of people (mostly jealous types) who will say ugly things to you. Don't pay any attention to them. As long as you are happy and DH is happy, that is all that really counts!