Hi M.,
I homeschool my 11 yo son (5th grade) and have been homeschoolings since 2nd grade. I also have an 18 mo. boy. I don't know what the laws are in MO, but in Kansas, kids don't have to start school till they are 7. To find out the laws in your state, go to www.hslda.org. They are a group of lawers who protect homeschooing and homeschoolers. You can find all you need to know about the laws in MO there.
Okay, that being said, don't be in a rush to start 'real shcool'. There is no hurry (especially for boys!). But, since you have a firtborn girl, you may find she is really excited and ready for 'school'. Kindergarten is easy, you're just trying to teach numbers, letters, facilitate exploration of her environment, and create a joy for learning. It should only take 1, maybe up to 2 hours per day in small increments. What does this look like in real life? It involves cuddling and reading lots of books together. It means taking walks and looking at green trees, red cars, and yellow busses. It means letting her help cook supper and learning to count the cups of water. In essence it is letting her live real life with you and learn as you go about your day. You may or may not decide to get a formal curriculum and workbooks for her. For young grades, it's really about hands-on experience. You may find that MO requires you spend a certain amount of 'time' schooling her but many things count as that time. Homeschooling becomes a way of life and just begins to 'happen'
I hesitate to suggest a schedule, as your life may look so different from mine. It may she gets up at 8 am, eats breakfast, does chores, and then you sit and read a book together (this may be a numbers/letters/nature book or a bible story or just a book for fun). Then you send her off to play for a bit while you get something done. Later you may take a walk and talk about stuff and explore. Next, you may sit down and count her dolls or sort legos by color. Maybe shes ready to sit and practice writing letters but maybe not.
Homeschooling is such a blessing!!!! And, you CAN do it!!! Yes, it will be a little crazy with the toddler running around and the baby on the way. No, your house will not be spotless! LOL! But, you will be giving your child the best education possible, free from all the craziness that happens in public schools. You and your husband will be her influence, not a bunch of other 5 year olds that are being exposed to who-knows-what. You will also keep her heart turned towards home and family and not 'the world'.
For now, try to connect with your local homeschooling group. Check out this group http://www.midwesthomeschoolers.org/ and the huge curriculum fair that is coming up April 25th and 26th. There you will find seminars on any topic you ever wondered about, tons of curriculum you can actually touch, and best of all, litterally thousands of other homeschoolers to connect with as ask questions.
Also, get to the library and start reading all you can about homeschooling. It will really calm your fears. I suggest Beyond Survival, A Guide to Abundant-Life Homeschooling by Cathy Duffy. Also, Sheperding a Childs Heart (can't remember author).
I bet this was more than you asked for, LOL! I'm a bit passionate about homeschooling. Please don't hesitate to ask me more questions, I'd sure love to help you.
In Christ,
Amanda