Early pregnancy symptom or food poisoning?

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This may be an odd question, but ever since I woke up today, I've felt pretty nauseous! To the point where I thought I was going to need to run to the bathroom and vomitt, even right now.  My question is how can I know the difference between if it may be pregnancy related or food poisoning? I don't exactly feel like I have to go Number two, just nauseous. My husband is saying he isn't feeling well, he feels like he's going to throw up and having to "poo" his brains out 🤣🤦🏻‍♀️. Now it's making me worry I might have food poisoning or something?  😂 How to tell the difference ?