It's hard to give a frame of reference for the pain. Everyone experiences it a little bit differently. Have you had any other surgeries in the abdominal region before, or is this your first? If you've had open surgery, I can unequivocally say that a laparoscopic procedure is less painful, as I have experienced both. If you haven't had abdominal surgery before, then it's a bit hard to describe, but most people are up and walking around within a few hours of surgery (with nurse assistance at first).
In my experience with three different abdominal surgeries, I am also confident that getting up and walking as often as possible will help minimize the pain faster. It won't necessarily feel like it the first day, but I didn't follow the walking advice for one of my surgeries and I had pain issues for much longer than the surgeries where I forced myself to walk a lot a the hospital and then often after I got home.
Walking also helps get rid of the CO2 gas from your body faster. The CO2 gas only escapes from one area, and that is from around your shoulders. You have to be upright and moving to really get that worked out quickly. Hot pads or a heating pad across your shoulders will assist in drawing out the CO2 and reduce pain. I felt my gas pain was a non-issue, but I know others who experience more pain from that.
I would say my abdominal pain after surgery was about a 7 on a 1-10 scale for about a day, a 6 for a couple of days, then it reduced dramatically. By the end of the first week, I would say I rated my pain about a 3, and by the end of the second week, it was completely gone.
You will experience things differently than I did, but the pain really isn't something to be concerned about. There is much worse pain for other surgeries and this will dissipate quickly as long as there are no complications. I always recommend walking as much in the hospital as they will allow you to do, and then start doing the same thing at home, working up a bit further each day (again, check with you doctor for recommendations, I'm not a medical professional, but that is what I did with my support staff's blessing). You don't need to push hard like it's exercise, just take it slow. My support team wanted me to be walking at least 30 min a day by the 3-week post-op, although I got up to 60 mins by that time.
The bottom line: there will be some pain. It probably won't be the worse pain you've ever faced or ever will face, but it will be there and hang with you for a week or two, but it gets better every day, especially if you follow your doctor's recommendations on walking and self-care after surgery.