it depends on a lot of factors like ny risk factors , placental position , singleton pregnancy or twins , previous history of preterm labour etc.
you need to consult your doctor for advise regarding this.
if all normal 30mins is ok
Disclaimer : The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.