I would just see how it goes and what you've got time for. We moved to three meals pretty quickly, but this worked with our routine and wasn't too difficult. Meals can take a long time in the early days and so are a big time commitment, especially as you'll still have milk feeds and naps to work around!
DS is 24 weeks old and EBF. This week we've decided to start introducing him to food. We started with some sweet potato which he seemed really interested in, he ate more than I expected (evident from nappy) so I feel he's ready. The next day we tried banana.
Since its early days I'm in no rush, just want him to enjoy it, play and experience flavours and get used to eating.
At the moment I'm trying something once a day for the first week or so. Maybe give him a taste of something off our plate too if its appropriate. Just wondering how fast I should be moving, and how I should go about gradually building this up? When should he start having 3 "meals" a day.