Pinkish blood discharge at 33 weeks

Hi guys, I’m a FTM so I might be overreacting to be honest. I’ve had a small pinkish discharge last night and I’d like to know what you think ?

Baby is moving fine, no pain, nothing out of the ordinary. I had no more discharge at all, just happened when I wiped. But I wonder what this little blood is ? Could I have your opinions please. Thanks