Hello
Thanks for your query at DoctorSpring.com
Any kind of bleeding / spotting during pregnancy should not be taken lightly.
You should visit your OB - GYN and have an internal exam and an ultrasound scan.
Do you have any cramps / pain ?
Is there any history of trauma / intercourse / infection ?
Looking forward to hearing from you with more details.
Did any previous scan show low lying placenta ?
Take care.