Hi Baba:
If you can provide a little information on the issue leading up to your surgery, disease history, which side the stoma is located, what your output is like (liquid or loose, solid or semi-solid, etc.), how many times you empty your pouch, that would give good info. Or...ask your doctor...
Either type of stoma can be temporary or permanent.
Colostomy: an opening in the colon (also known as the large bowel or large intestine), stool can be anywhere from mush to formed and in between, depending on where in the colon they opened it on the abdomen. A colostomy stoma can be either on the right side or the left, or along the belt line if transverse colon. Reasons for a colostomy vary; colorectal cancer is the most frequent cause; Crohn's is a possible reason. Ruptured diverticulum (from diverticulitis), sometimes done for stool incontinence, and a few other reasons. Most folks will have to empty their pouches 1-5 times/day depending on where the opening was created (the farther away from the rectum, the looser and more frequent the stool). It is possible to be constipated.
Ileostomy: an opening in the small intestine (usually the distal end) most frequently done for ulcerative colitis (and the entire large intestine i.e., colon removed), sometimes Crohn's, sometimes a temporary ileostomy to allow a bowel reconnection to rest or heal. Typically, the stoma is on the right side of the body but could also be placed on the left. Stool character is usually at best cream of wheat type consistency, though most will have liquid or loose stools on and off, depending on what they eat, where in the small intestine the opening was made, and the disease. Most folks will need to empty their pouches 7-9 times per day typically. Constipation should not be an issue, and if no stool for several hours, it would be suspicious for a food blockage or other intestinal issues; accompanied usually by pretty severe pain; a trip to the emergency room warranted.
Hope this gives you a little information. The best thing to do would be to ask your doctor, but if you provide the history of why the surgery, what they told you, we can probably figure it out.