Developmental stage of a six-month-old baby

Wow that is awesome. I have twin girls that just turned 6 months old last sunday. One of which weighs 15 lbs 1 oz, height 26 inches and the other at 15 lbs 12.5 oz, height 24 inches. I have them on gerber 1st foods. I do 1 vegt. and 1 fruit around noon and the same around 6 or 7pm. They share that. formula, juice and water. They have not cut teeth yet therefor I haven't introduced gerber's 2nd yet. Should I? Neither are crawling nor pulling them selves up to reach furniture. One of them brings herself up on all fours now though so we think she will be crawling pretty soon.

That's amazing that her baby is 6 months old and crawling and pulling up! My 6 1/2 month old is similar sized (18 1/2 lbs, 28 inches tall, size 12 month clothing and 4 shoes) All she does is sit unsupported and rolls all over. Occationally she will scoot a few inches here and there. I've seen her push up to all four very briefly, like a few seconds. She eats 1 to 2 jars of stage 2 baby food total a day, and breast feeds like 8 times daily, (today I pumped like 7 ounces so she's eatting like 56 ounces a day!) We are working on weaning off the night feedings. She hates veggies, will seem to only agree to eat apples and bananas and some fruit on the occation. I'm scared to offer her water as she seems very dependant on milk right now. She just cut her 2nd tooth (central incisor). We co-sleep and are working on stopping that as she is very active now and I'm worried she will roll of the bed. I have pillows propped on either side of the bed to prevent accident, but that will work for only so long! I appreciate the answer above, but feel it needs more! Unfortuantly I also know that each child needs their own advise, and the answer above is very broad. Thank you! It's good to compare!