I have two very similar experiences, both occurred at 6 weeks, but both had very different outcomes.

With my very first pregnancy and with this current pregnancy I had a couple of days of pink tinged mucus at 6 weeks. My first pregnancy ended with my angel at almost 9 weeks, but this pregnancy is fine and my bub is a very healthy (and active) 23 weeks gestation. I was terrified and devastated when I saw the pink mucus this time around because of what happened with my angel's pregnancy and I went to my first Ob appointment on the second day of the spotting expecting the worst, but was overjoyed when I saw a little heartbeat flickering away.

Try not to worry to much because some spotting can be totally normal, and worrying yourself won't change the eventual outcome anyway. Take joy in the life growing inside you and I very much hope that everything will be completely fine with your precious little one ♥