Hi, i'm the mother of girls that are 7 months old and a 2 year old son.  I could always use advice on what to expect with twins at this age.  Is their development supposed to be somewhat delayed?  What should they be able to do at 7 months?  I can't remember exactly what my son, Parker, was doing at this age.  I'm pretty sure he was sitting up unassisted, but not standing up.  Bell stands, with support, but Ally doesn't even sit without something behind her.  They don't really dig the bumpo seats either, which seemed to build ab strength with Parker.  Any suggestions? 

I have b/b twins and they are 9 months old they aren't doing as much as their brother was at this age but they aren't behind the sitting up thing comes with time at about 8 months was when they both started sitting excellently before they were topsie turvey.  They are both only standing with a great deal of assistance but are both finally crawling.  Hope this helps a little

I have b/b twins and they are 9 months old they aren't doing as much as their brother was at this age but they aren't behind the sitting up thing comes with time at about 8 months was when they both started sitting excellently before they were topsie turvey.  They are both only standing with a great deal of assistance but are both finally crawling.  Hope this helps a little