Morning Sickness Already?

Ho
I'm 5w1d according to the app, but I think I could be more like 5w4d because I ovulate early.  Literally had sex only once on Jan 2 (and that was the first cycle after a MC where we weren't supposed to be trying yet!  Husband forgot to pull out! 🤦🏼‍♀️).  Anyways, I'm already waking up early (3,4,5am-ish) and today I had to eat some crackers at 3:30am to calm my stomach because I felt so hungry/queasy.  Is this the beginning of morning sickness?