Is contraction like cramps at 9 weeks pregnant normal?

Possibly. Some cramping in early pregnancy is normal. It is caused by the stretching of the uterus. Bleeding is never normal and that combined with cramping should be evaluated immediately.
What did you OB doc. Say u should ask your doc, if you were my pt i would do an exam and ultrasound and if everything looks ok then u will need to rest and no intercourse.