Bad milk

Su

So I opened a small bottle of milk and took a swig of it, only to notice the disgusting rancid, acidic taste. I look at the expiration date and it is TEN days expired- sitting in a little open fridge in a cafe. I spit out what was in my mouth but i know I swallowed one gulp. Do you think this will make me sick? Super worried about food poisoning especially with the baby in there :(