Am I out this month?

I’m having brown discharge with a little bit of blood I was supposed to start my period yesterday but Flo switched it to tomorrow so I’m really confused but this past week I have been so tired that I didn’t want to do anything just lay in bed, I have been eating a lot of junk food and I been emotional and I get moody very quickly, I booked a Dr appointment for abnormal hormones but It did not cross my mind that it could be pregnancy related. Am I out this month since im already having brown discharge and period due in 1 day ?