Weirdly light period??

Hey guys, I have had my paragard for over a year now!! I love it!! Periods are regular but this period is very strange...it's as if I'm spotting the whole time. My tampon is barely bloody. I have been stressed like crazy lately and I have just moved in with my boyfriend so there is more sex in my life. Should I be worried?? My period the first two days are usually a crime seen...