No bowel movement?

Hi & thank you for taking my question. I would like to know if it is normal for my 11.5 year old lab mix to have gone for about 48 hours without a bowel movement following hospitalization for a first episode of pancreatitis? She was NPO from Tuesday until Friday, and was on IV fluids and electrolytes, IV pain meds, anti nausea meds and antibiotics. Came home Thursday night, was hand fed some turkey baby food Friday morning and was able to progress to eating a half cup of finely diced chicken mixed with baby food twice on Friday, three times Saturday and twice so far today. She began drinking water mid day Friday- just once on Friday, and more each day since. She had two smallish loose stretchy stools Friday, but nothing since, Is no t straining or making any effort to go, and doesn't seem any more uncomfortable since coming home. She is slowly looking a little better each day, is walking, wanting to go for rides, and hanging by my side as usual. I did notice that the first baby food I gave her listed onion powder as the last ingredient, so I switched it as soon as I caught it. So the question is how long is normal for her to go without a bowel movement, and when should I be concerned? Thank you... She is urinating normally, and today has begun to pass some gas. Is still taking clavamox and Pepcid by mouth and has resumed Rimadyl, century senior vitamin, and Dasuquin chew. Thank you.

Just want to thank you very much for your thoughtful and prompt response. It was very helpful. Take care.