What should I do?

So for the last couple days I have been really emotional, and eating a lot more than normal. I have stomach issues so I don't really eat meat; I just came back from dinner and downed a whole plate of hibachi steak 😳lol. I got my period this month, and it was a lot shorter than normal, 4 days vs. 7 days. I have an appt with my doctor this week. Should I take a test or just wait for the doctors appt? 
Edit: my period isn't due until 14th