R.Y.
It's plenty of party for a toddler. Even if you didn't invite anyone you can still celebrate with a little cake and some special attention. I usually keep things low key for birthdays since my kids are still pretty young (almost 2 and 5). I make a cake and invite one or two friends. One year we had a playdate with a favorite family friend, another it was just grandparents and my best friend. Most of my family has birthdays around the holidays and it's too hectic to try and do a big thing. My birthday and my daughters are both between Christmas and New Years and that is just how it goes. Big parties are rare but sometimes you get extra presents (because of many holiday gatherings when you see a lot of people).