Answer: You are suffering from piles which is quite normal during pregnancy. Constipation can aggravate, or even cause, hemorrhoids (piles) (when stool is hard, the extra straining you'll need to eliminate it can put pressure on the veins in your rectal area and cause them to swell and bulge). They may also develop postpartum as a result of pushing during labor.
Avoid excessive strain during bowel movements. Allow gravity to help, but let your bowels do most of the work. If nothing happens, put it off for an hour or so, and try again but most importantly, don’t strain and force a bowel movement that isn’t happening naturally.
Stay hydrated. Increase your water consumption to at least 8-10 glasses each day. Stool (feces) contain significant amounts of water—and the more water a stool contains, the softer it will be, which makes it easier to pass.
Consume more fiber in your diet. Fiber helps keep water in the stool and bulks it up so that it passes through the rectum and anus more easily--and in the case of hemorrhoids, with less pain. Good sources of fiber include:
Seeds -- One hand full of chia seeds will ensure you will get enough fiber.
Whole grains-- include brown rice, barley, corn, rye, bulgur wheat, kasha (buckwheat) and oatmeal, fruits, beans.
Pay attention to nature’s call. Don’t wait once you feel the urge to have a bowel movement; go as soon as you can, but don’t sit and try for too long waiting—sitting is also associated with an increased risk of hemorrhoids.
Put yourself on a regular schedule.See if you can arrange a regular time to have a bowel movement without interruptions around the same time every day. This tends to make bowel bleeding movements easier, and it turns out that having regular bowel movements is a great predictor of overall good health.