A.H.
Hi N.!
Like Kelly said, it is OK. The important thing here is for you to relax. A little pink is OK. You shouldn't worry unless you were bleeding bad like a period. Brown blood is old blood or tissue that has just been "lying around" and the body is now flushing it. The bright red blood is what you have to worry about. Pink is OK. I had that happen with my third child at the age of 36 (high risk). So of course since my OB put me in the high risk category, I got scared and went in. Everything was fine and normal. And I'm sure you will be OK also! Good luck with your pregnancy!
AMH :)