Question!

Hey guys! So on Wednesday I took a first response test digital and it came up saying I was pregnant! So then later that day I took another cheep 99 cent test it came up positive also well yesterday I took another test in the morning and the line is so faint! I don't know what to do or think! I've been sick all week going towards the night time! No, cramping no bleeding or spotting! I don't know now if I am or if I'm not! Do I just wait to see if I should start my period or go ahead and try and get in to the doctors?!! Advice please!!