pregnancy symptoms

Alondra • 22•♏️ | Gwen’s Mum 💕👶🏻🌻 | Caesars Gal ❤️💍
Has this ever happened to anyone? 
So I'm still waiting on my period to show. 
I haven't had the urge to pee every five minutes but what I have noticed is cravings for fast food and I mean lots of it. (I don't ever eat out like this) so I crave it and then when I'm done I feel nauseous but I can't puke. it also feels like I have heartburn all the time and the only way to calm those feelings down is if I drink something bubbly like ginger ale or sprite 
Could this be a symptom?
And has this happened to you? If so please tell and share your thoughts with me 
Thank you in advance 💕