Morning sickness started up around 6 weeks and lasted into the 4th month. I never got sick, but stayed extrememly queasy the whole time. I lose weight the first few months with both pregnancies. To this day I can not stand the thought of Chicken & Dumplings -- ugh.
But then the cravings kicked in and I more than made up for it! Both times I craved fruits and hot, spicy stuff. Then there was popcorn with parmesan cheese & season salt. I still love that!
I saw something that I used to crave when I was at the grocery store yesterday, but I've already forgetten what it was. That's called mush-brain, caused by pregnancy and lack of sleep, and apparently never goes way. LOL

Good luck! You're in for one heck of a roller coaster ride over the next several months -- enjoy it!