I got mine before hand. I have a reclining one that a baby can lay back in.
I'd get it now babies start eating baby food at 4-6 months
Ull have to wait until baby can hold their head up but it doesn't have to be a high chair we had a strap on feeding chair that I really liked and was more outta the way until my mom just HAD to get us a high chair that is nice but really takes up room