I am with Bug and Osohapi.
You are not "clearly behind" on getting your children baptized..they are so young and have no idea yet what the covenant of baptism is about.
We ARE regular Sunday church attenders and our youngest,age 7, is not baptized yet. 8 years old is the youngest age children can choose to be baptized in our faith. All along the way they are taught the Bible stories and taught to grow their own testimony of our Savior.
Is this simply a dedication type ceremony?? More for the parents to publicly dedicate themselves to raising their children in a Christ centered home?
I believe baptism should take place when the child knows what he or she is covenanting to do. If your children aren't ready to "jump in" with a simple children's bible then how are they ready for the commitment a covenant with God means. Baptism means they accept Christ as their Savior and will live by His teachings(which are the bible stories) and will seek repentance when they stray from those teachings.
Maybe wait a while...and jump into those bible stories FIRST. Teach your children first about Christ so that then they will truly want to follow Him with their whole heart..and not just because Mom and Dad had them baptized.
Ask your church's pastor about Bible stories. Do you have a little library in your church that has Bible pamphlets,movies and books? There are non denominational Christian Book Stores in most every town. You are in Los Angeles and I am sure there are a ton of book stores. Even the major book stores have sections for religion.
I think it is wonderful you are looking to increase your children's understanding of our Savior and His teachings.. Way to go Mom!