Hi, my dd has just turned 8 months and unlike her 2 older siblings who were sitting up by now, this one isnt. Wasnt concerned at all just thought they are all different and she will do it when she is ready etc. Since she had her 8 month check last week when the hv came round , however I have been really stressing about it as the hv wants to come back in a few weeks then poss get her to see a physio. Trying to encourage her to sit but to be honest she just doesnt seem ready. Dont know what advice if any I m looking for really but tell me what age did your baby begin to sit up?? These bloody milestones!!