Does fever, diarrhea and nausea mean I got pregnant?

Pregnancy or food poisoning? Please help Taking vibin mini birth control pills, I am in the process of taking a break after 2 packs. the first withdrawal bleeding has occurred, the second is expected to occur tomorrow. I woke up with nausea and was slow, so I said I'm going to do a test, I did today, the day before the bleeding, out of my morning urine. came out negative. In the afternoon, there was a fever, and diarrhea persists. pregnancy or rather some kind of poisoning? I would add that I ate yesterday something that could potentially harm me and all the pills I take regularly, at the same time, I did not take medication, previously there were also no vomiting or diarrhea until now, today 2 day break