Should I be worried?

Okay so me and my fiancé have never used any type of protection besides withdraw. I was 3-4 days late on my period and this evening I finally started but my flow is usually pretty heavy but this time I'm just getting like I light pinkish color when I wipe verses usually having tons of blood on the toilet paper. And usually when I put my tampon in when I pull it back out the applicator is covered in blood and it's not like there's nothing there and I get nothing when I wipe. I still have the symptoms tho the bloating and cramps. Should I be worried? Should I take a test? I don't wanna freak out over it or freak my fiancé out. Please help. All advice welcomed. Thanks in advance.