WHO recommends that infants start receiving complementary foods at 6 months of age in addition to breastmilk, initially 2-3 times a day between 6-8 months, increasing to 3-4 times daily between 9-11 months and 12-24 months with additional nutritious snacks offered 1-2 times per day, as desired.

This is on the WHO website. There is also a booklet you can download with recommendations of what to give, how much and when. As everyone has said it is a personal decision. Noone knows your child like you do.
Good luck!! I have this confounding, conflicting and confusing advice and information to look forward to in the coming weeks!! Maybe I should start reading now, hehe!