Hello,
Thanks for posting your query at DoctorSpring.com
Any kind of bleeding and cramping in pregnancy should not be taken lightly.
At times, it might be harmless, but at times, might herald the onset of a miscarriage or a low lying placenta.
It is best to consult your obstetrician and go for a pelvic ultrasound scan to confirm that all is well with the baby.
Meanwhile, you should rest.
Avoid stress,intercourse, lifting heavy weights, standing for prolonged periods or straining yourself.
All the best
Please feel free to discuss further.
Regards.