Can IV fluids cause diarrhea? (Maybe tmi)

saturdaynightdoubletree

Last night I spent 5 hours in L&D with contractions, and they wanted to see if pumping me with IV fluids would slow things down - it didn't, but I also wasn't progressing, so they discharged me. While at the hospital I had one large drink of ice water and 2 bags of IV in a short amount of time. When I left, DH and I grabbed a late dinner. About an hour later we were home and within a few minutes I was running to the bathroom with diarrhea. Could this be from the IV? Or do you think it's just another pre-labor sign?