14dpo w/ nauseous and heartburn 😟

I haven't tested as of yet. AF is due to come tomorrow, if she doesn't show I'll test.
But since yesterday (13dpo) I've been experiencing a nauseous/ heartburn feeling. Kind of as if I'm queezy but if I were to vomit it'll be heart burn like. It's hard to explain. I am new to this all and just wondering.... Has anyone experiencing this???Â