Morning sickness

I have two kids, and this hasn’t ever happened that I can remember (4yrs old and 1.5yrs old). Has anyone ever had what seems like morning sickness BEFORE their missed period and before they actually know if they’re pregnant??? I’ve been getting up in the morning SO sick. And being pregnant isn’t off the table. Not necessarily trying, but not preventing either. I literally feel like I did with both pregnancies. Thoughts?