Hey hun- yes as Debbie said if u got a line (even a faint line) then it's a pos! congrats!
As for the pink tinge- I had exactly the same thing on mon night after BD (when I was on 6dpo), yesterday I was 8dpo and had some verrrrrrry light spotting in the morning (as I said in a previous post) so im kinda hoping that it is a good sign for me!
I had a look on the net last night as I was a bit worried as I never ever spot after BD or mid cycle and it said it was common in early preg after BD so im sure it will be ok.