Implantation bleeding? HELP!!

[Unknownlou2901]

Hi guys,
First time on here but got a big question.
I’m 19years old and been in a relationship for nearly 2 years, near nearly a year we have had unprotected sex and never had luck with pregnancy.
Today ( 1weeks and 3 days before AF due) I went to the toliet and as I wiped I had a brown ish not so much pink but you could see a hint but of blood on the tissue. I’ve had cramps a couple of head aches, my back of my legs have hurt a little ( I don’t exercise), cramping and the under of my arm pits hurt on and off. Also I can smell a cat P*ss like smell every where I go yet there’s no cats around.
Please help I don’t know what to do

Update, woke up this morning it’s turned into dark brown, not too much but a little bit more than yesterday.

You could definitely be pregnant, maybe do a test in a few days and see! I had similar bleeding at the weekend (no other symptoms like you though) which I thought could've been implantation but I think it was just actually ovulation, do you know when you ovulated?