Congratulations! I hope you will be able to find time to yourself. This might be a good time to choose quick & easy patterns, so you can still feel like you are accomplishing projects without getting frustrated by lack of time.
I can understand how you feel - I had 3 sons under 3 years old. 3 in diapers for a short time. It was hard because no one wanted to babysit all 3 at once, so going out required 2 babysitters...needless to say, we rarely went out. They had the same friends in their teens. It wasn't easy, but I survived! I remember celebrating when my youngest turned 18!