Head aches, dizziness and urinating a lot - Online Doctor Chats

Doctor :   Hi
User :   I am 18 years old. i quit using XXXXXXXX birth control last month. After my period, I had unprotected sex twice and use the withdrawal method. I began to notice that I was frequently tired, had bad head aches, was dizzy, nauseous, urinating a lot, and was generally experiencing common pregnancy symptoms. However 3 days ago I started my period. When I started my period, I also started a new birth control pill. I am still experiencing the same symptoms with some new symptoms like heart burn. Could I be pregnant?
Doctor :  
let me read
User :   Okay.
Doctor :  
you have started your period than how can you be pregnant?
Doctor :  
the heart burn, feeling tiered headache are not signs of pregnancy
User :   I've heard that women can bleed while they are pregnant. This is very confusing for me. I've also had cramping and other symptoms.
Doctor :   if you are in doubt get urine pregnancy test done