10 Days late bfn

Hi .. I am 10 Days late tested on frer today morning and it is bfn. 4 days ago I tested with equate and I got a vvvf positive after couple hours. I have 34 Days cycle . I get sensitive breasts before periods ( pain when touched). This month I dnt have any of those period symptoms and I am late too.. I have cramps in lower abdomen and back pain from past week. Should I go to doctor and check ? Do I have any chances of pregnancy. I m worried please help!

Blue dye pic taken 4 days ago.

Pink dye pic taken today.