HELP... my baby just turn 8months today and still not sitting up

All children have different development rates,my daughter is 10 months old and is using the table to stand up already which in my opinion is soon, other children don't stand up untill 1 year old so don't worry.

I don't think 10 months is early to start pulling up on furniture. My kids were pulling up and cruising furniture when they were each about 7 months old. My daughter walked at 10 months, my son started at 11 months.The best way to encourage physical development is to give babies a lot of tummy time throughout the day. Chances are they'll hate it at first because they can't move. But if you spend time on the floor with them or have them lay on your chest so you're face to face it's a little easier. And the more they do it the stronger they get. We had to get a tummy time mat with a little Boppy pillow on it for my son because his head was so big. No matter how hard he tried he couldn't lift his head and it made him crazy. But the little Boppy pillow supported his chest just enough that he could get his head up to see things and he gained strength quickly. He enjoyed tummy time and he ended up hitting some milestones early, often developing multiple skills at once. He started sitting up, crawling, pulling up to stand and cruising furniture all within a two week time span.