I had some pink and it went away. Later I had actual bleeding from implantation and with rest that solved itself too. Now at 37 weeks and all is well. It's very likely you'll be just fine.
Make sure you're really hydrated, that can sometimes cause spotting- I went through that myself- but if you're really feeling freaked out, try calling your Dr's after-hours line, sometimes it helps just to hear it from your Dr office that everything is normal. :)