Spotting Question

Glowconsin

Hi ladies.  I'm new to this board.

Yesterday, i had my first ultrasound.  RE found 2 heartbeats measuring about 6 w 2 d and a yolk sac.

This morning, I woke up to a dripping feeling, ran to the br, and was spotting red.  Sorry if this is TMI, but it's thin red, not flow and not clotty.  I'm definitely a bit crampy too.

I called RE, they said it's normal and fine and they see it in about 50% of the cases.

Do you ladies have any experience with spotting around 6 w and it turning out to be ok??