Spotting at 13 weeks

Eve • Baby girl 👶 due December 2018❄❄❄

Hey ladies, has anyone ever had spotting at 13 weeks. a while ago a woke up of my sleep wanting to urinate and when I wiped I saw pink blood with a small red tissue material,I don't know if it's off my cervix, my doctor told me that there were some blood vessels build up on it, I'm wondering if it burst.

has this ever happened to anyone?