Anyone get morning sickness super early on?

If I'm pregnant I would be around 3w 5/6d, and starting tonight I feel SO nauseous and have a splitting headache. I never get headsches, and I haven't eaten anything out of the ordinary. :/
Took a test and it's negative, AF due in 2 days but I'm still holding onto hope. I didn't get a BFP with my daughter until I was late.
I've been SO incredibly tired the past 2 days, it's crazy how much I've slept :/ I'm never like this close to AF. Anyone else feel this way and get a BFP after AF was due?