I'm 9 or 10 weeks. Already had 1st ultrasound everything was fine. Today I went to the bathroom and noticed a tinge of blood when I wiped. Nothing in the toilet. Throughout the day when I used the bathroom I didn't notice it again. Now for the 2nd time I noticed it again. I am not cramping and don't feel any pain and I've mostly been in bed all day. Should I be worried?