Exercise & Early Pregnancy: Treadmill Safety & Guidelines

Question
Hi my periods is due by 36 days and still i haven't done home pregnancy test. whether it is safe to work out in tread mill in 4.5 to 5 km/hr speed in my gym? how long i can continue tread mill if my pregnancy is confirmed

Answer
Generally, before 20 weeks gestation you can continue to exercise at whatever level that you body is well adapted to. When performing aerobic exercise, stay in you aerobic training zone, never get to the point where you're feeling out of breath, or are panting. Stay in a perceived exertion range of "somewhat difficult."