Question

Has this happened to anybody else was just about to go to bed so I went to the bathroom to empty bladder and I wiped and there was a tint of light pink calling doctor in the morning because they are closed plus no cramping or anything just wanted to get someone's opinion about it oh and I go to get my ultrasound in a week I'm 19 weeks and 2 days I had a ultrasound a week ago and she was absolutely healthy and wiggling around so I'm not worried to much just a little