Drink lots of fluids, especially juices, exercise, you can take stool softeners. My doctor told me that the prenatals can cause constipation and to eat lots of greens and drink lots of juice. I also take a stool softener every other day and it helps alot.
Get prume juice it good for that too
Miralax or Metamucil. Ducosate.
I was constipated at this stage of pregnancy..I couldn't handle it!! So i went to see my midewife, she advised to drink plenty of water and to eat fruit and cereal with grains .. As well as she gave me a prescription of a medicine that really helped i only took it one time then i went to the bathroom immediately:) so i advise you to follow a healthy diet plus you can go and see your dr.