Also, baby might compress intestines. Over the counter laxatives will create fluid retention and harm the mother. Hemorrhoids - Caused by progesterone and later by enlarged uterus putting pressure on the veins. Pads of witch hazel are particularly soothing even when chilled in the refrigerator. Varicose Veins - Same reasons as hemorrhoids.
Regular exercise helps.
Do not wear clothes that constrict the legs. High heels don't help. Swollen ankles or extremities - Avoid diuretics and preservatives. Preservatives retain water in body. It also helps to exercise.