Do you think Im pregnant???

Hey you guys my lmp was September 13 and I had intercourse with my boyfriend the 18 and 25 a week after I started getting frequent headaches,urination and back aches. I also get the hiccups alot and feel gasy (I know tmi) and I just started getting more discharge which is white and thin. Im not due for my period yet but If I miss I'll test but for now I just want to know what you think I'll update when I know