6 weeks 2 days: I think I have morning sickness

My last two pregnancies, I never ever once felt sick or queasy. This morning at around 10am, I can firmly say I got queasy. The entire morning I had a really upset stomach.. got up feeling so. Kept burping really big burps from really deep inside my stomach... and just sort of got progressively worse. After lunch though, it went away and now I'm totally fine, just a bit gasey.