Nausea all day before i eat and after i eat dizzy sometime no miss period yet sex unprotected and i have a miscarriage about a month ago help please?

Pregnancy test: If nausea is too much ,check with gyn.about what you may use to help with nausea and safe if pregnant besides ginger,small fluent meals.

You think pregnancy?: If so then, you can't verify that until at least you've missed your next cycle. At that time you can get a pregnancy test and see what it shows. If it's negative then, you'll want to see your primary doctor to work on what could be a GI disturbance of some sort or perhaps blood pressure or even maybe medication side effect if you're taking anything new.