What do you think?

Ok so I am about 7dpo and my period is due the 27th. So I woke up this morning and had some spotting in my underwear. Nothing when I wiped. No cramping. Nothing more all day and the spotting was like barely anything and light pink. Do you think I am starting early or what is going on? So confused. (Btw my boyfriend and I rely on withdraw/pullout method only, I track ovulation but it does not affect out sex life I only do it to keep track of my periods and my body) any answers are appreciated I normally don't spot except day before period and it is all day and have cramping.