Sure can!

You can click manage attachments on the bottom of the post (when your replying to something) and upload pictures from your computer.

OR

You can go to a photo hosting site (such as www.photobucket.com), Upload your pictures and paste the [IMG]hwblahblah[/IMG] code that it gives you.

Hope that made sense...I can't wait to see your baby girl

Edit: OH! And Welcome to PT!!!