AM I OKAY?! 5 weeks pregnant

So i was in the shower and stuck my middle finger inside of me and when i took it out there was small amount of blood like very little on my nail ... i immediately freaked out and hopped out the shower. I the grabbed a cotton swab and inserted in me to check if there was more blood and there wasn’t like at all .. i put my finger back in and now nothing at all ... what was that and why? Should i be worried??