Early morning sickness

I’m about 6 weeks pregnant and I’m having horrible sickness I’m having migraines and I’m throwing up even the slightest of things. Today I had a piece of banana and a snack size yogurt threw that up. Tried to take a pill for my headache threw back up the whole pill, drank water threw that up. Any suggestions please. I have a one year old and a three year old I’m so miserable