I found out at 5 weeks and at 7 weeks is when I had my first ultrasound. I felt super tired (like, I was sleeping all day!) and really really nauseous. I never threw up, but there was lots of dry heaving. I craved everything, but could only eat certain foods without feeling sick. I felt pretty woozy, dizzy and sick for the whole first trimester. Second trimester was fucking amazing, and now at the end of the third I'm ready to get this baby out, NOW!
Oh, and congrats!