Light period?

Hey, Gals!! Just wondering if I could possibly be having a very light period? My boyfriend and I have had sex, but every time a condom was used..and he still pulled out before he came! There's basically no way I could be pregnant, but I worry myself to death over it!

I have had tons of stress in my life lately, not only with the pregnancy thing but some at home & family problems as well.

I've had very light spotting everyday for about 5-7 days. It was so light it never even required a panty liner, but it was always there when I wiped!

I also have symptoms: cramping, constipation, headaches, leg aches (I always get them), and acne! No sore boobs or anything though!

Could i just be experiencing a super light period because of so much stress? All reply's are helpful..thanks!