Sounds like a pretty typical 3-year-old to me: bossy, obstinate, wanting to be the center of attention. Don't get me wrong. I say that with great love for children, but 3-year-olds are a challenge. Everyone talks about the "terrible two's," but the reality is 2-year-olds may be a handful, but they don't really understand what they are doing; 3-year-olds are a handful and they DO know what they are doing.

Anyway, don't push it. Expect after the birth that she will either refuse to be in pictures with the baby or completely photobomb every picture because she doesn't want to be upstaged. It's all good, and all perfectly normal.

We were laughing at some old videos of our sons when they were little. There is a 6 year gap between my oldest two, and after my 2nd was born, my oldest was hugely jealous. He loved his baby brother, BUT, in every attempt to video the baby, the big brother was right in the middle of it telling us to get pictures of him. They are now adults and managed not to kill each other as they grew up; they are quite close (actually always were).

By the way, kids will throw the "I hate you" thing at their parents at least once in their lives (you're lucky if it is only once.) Grow a thick skin about such things; they are looking to get a rise out of you and as soon as they succeed they'll know to keep that weapon in their arsenal. Welcome to the world of parenting more than one child! Three is even more fun; they outnumber you. LOL!