Let her do on her own dear.

No dear.. sitting starts by 6th month and in that too all babies are different in achieving milestones.. also they sometimes skip a stage and directly reach next..once baby is 5 months make the baby sit on lap with support..

<span style="color:#3B5998;"><b><a href="http://app.babychakra.com/collection/118">Baby Growth And Development</a></b></span>

Yes they are right. Wait till the baby is atleast six months