On The Move and in the Mouth!!!

Elizabeth is in the beginning stages of being a mobile unit in our household!! (I think it will be time to "baby-proof" our house sooner than expected!) She is able to push her upper body up when she is laying on her tummy, playing on the floor.She then sticks her little but up in the air and kicks her feet. She resembles a fish out of water at times! Soon enough she will figure out that she has to use her arms to push up her stomach off the gound in order to move about. She gets frustrated when she can't figure things out, but that just means she tries even harder! Elizabeth has found a way to move about though. She does the infamous "ARMY crawl"...kind of anyways! Somehow she manages to move on her belly, but I dont think she realizes what she is doing! I can put her on the floor with her head facing the kitchen, and with in 5 minutes, she is totally turned around and facing the front door. This my friends (and family!) is a true sign she will be scooting around soon!
Elizabeth loves tummy time, but, like everyone, she gets bored when she gets stuck doing the same thing over & over again for long periods of time! If you put her on the floor, on her back, within seconds, she is rolling over onto her tummy trying to reach for anything she can stick in her mouth! Even if there is nothing around her (within a 1-foot radius) she finds her way to it!! (And whatever she finds...it she finds a way to get it in her mouth!)
Elizabeth chews on everything....her toys, mommys hand, my shoulder, arms, stuffed animals, blankets. Whatever she can get her hands on! I am sure that she will be getting some teeth in soon as well. It's just a matter of time! She has a pretty firm grib, for being such a young one! She LOVES to hold onto Mommy & Daddy's fingers. I think it gives her security, especially when she is trying to fall asleep! Speaking of sleep, now that she is moving around more, I have noticed (when she is with me anyways) she gets tuckered out quicker, and likes to take her naps. This past weekend, she slept for FOUR HOURS straight! I couldnt believe it! She has been sleeping through the night since before I even came back to work. This has been absolutely awesome!
We have her 4 month doctor's appointment this Friday. She gets her 2nd round of shots. Once again, I am sure Mommy will cry! I think it hurts me more than it hurts her! When we took her in for her first round of shots, I really think that was the hardest thing I have had to do as a parent, thus far. It is this doctor's appointment that they will probably tell us that we can start feeding Miss E ceral/rice with her "mommy's milk". I know some people/doctor's suggest introducing cereal at 4 months, some say 6 months, because it gives the child more time to develop, and introducing foods too soon is a great way to find out if your child has allergies. So, I am debating when I want to start her on cereal. Any suggestions?!
It's not like she is a starving child! She eats very well! Sometimes too well!
That's enough for now. But, I will be keeping you posted as she keeps on the move!