Should I continue to exercise once I'm pregnant?
It is advisable to do light exercises throughout pregnancy unless your doctor recommends otherwise. In fact, there are many exercises that should be done after the first trimester which can ease your labour pain and make the delivery smoother. E.g. yoga, squats, pelvic tilt, etc.
Can I keep running to be fit like I did before?
Yes, but incorporate adjustments in your intensity, frequency and speed. Running during pregnancy is for fitness, and not to train. You'll need to reduce your mileage as you progress in the second and third trimesters. Be sure to recognise your limits and stop if you have signs of dizziness, faintness, or shortness of breath while exercising.
I don't feel like exercising as it tires me very easily. What should I do?
Feeling tired during pregnancy is normal. Being relaxed should be your priority. However, too much rest can increase fatigue, while exercising can give you more energy. Exercise slowly, but not to the point of exhaustion. For this, you can break up your exercises into 2-3 short sessions a day so that you don't feel completely drained.
Can I include sit-ups in my exercise schedule?
After the fourth month, studies suggest that no exercise should be done while lying on your back. After the fourth month of pregnancy, if you are on your back frequently, then there is a risk of the uterus applying pressure on the vena cava, which could decrease cardiac output, reducing maternal blood pressure.