Last night my sister and I split a cheeseburger at a restaurant (she's pregnant, too). We ordered it medium (thinking they usually overcook burgers). It was definitely medium and even more pink than I would have liked, but it was dark and I couldn't really tell so I didn't send it back. I ate most of it. We both had some bathroom issues this morning (sorry, TMI!) and are attributing it to the cheeseburger. My stomach was just a little gurgly this morning and I felt a little off. I should add that I haven't eaten much red meat at all lately - maybe like once every three weeks (just not craving it is all).

My sister is a third time mom and should be calmer than me, but she's more of a nervous nelly than I am and now she's worried we have listeria. In all honesty, what's the risk? What can we do now? I really don't want to bother my doctor unless I'm actually sick (which I'm not).

Help?!