Was it food poisoning or the baby?


I’m 9 weeks pregnant today. Yesterday I got a steak omelette from IHOP. I ate half of it & put the rest in the fridge for later. I felt fine. This morning I reheated some more of it and ate for breakfast and still felt fine. At 5 I decided to eat the rest of it. Two hours later I threw up and was on the toilet for a good hour with diarrhea. I feel a lot better now and I have no fever. My friend ate the same thing from there and she’s not sick. Should I be worried?