2 Pregnancy symptoms ? HELP PLEASE

Samantha

I hope I'm not hallucinating but lately I've been craving for sweets like chocolate and cookies and now all of a sudden I had horrible feeling in my stomach like horrible gas. Can that be a sign of early pregnancy ?

And I had sex on the 17th where Glow said I was fertile from the 15 to the 20th. AF is due on July 3rd I guess ANY HELP ! PLEASE ?