Faint lines

Okay I missed my period in october and it has been 2 weeks after i should have started. I took three HPT yesterday, the results where faint but still you could see them. Then after I took them I started to spot, which isn't normal for my period when I have one. Then today I seen blood when I wiped and only one time did I see anything in the potty. I have an appointment Monday to confirm if I am really pregnant or not, do you think I should be worried? PLEASE HELP I AM STRESSING AND WORRYING OVER THIS.