Does this sound like the flu or pregnancy?

Everyone keeps saying I’m pregnant.

1. I’m not hungry. I didn’t eat on Sunday. I had an egg on toast last night and a banana this morning. Not hungry (which is unusual).

2. Thinking about food makes me nauseous and I get extra spit in my mouth.

3. I threw up on Thursday out of no where.

4. I have gotten “hot flashes” like my body gets hot and cold at the same time, really nauseous, I have to swallow a lot, then it’s over and I feel fine after a short while.

5. I don’t have a fever. I had a headache but that’s it. I don’t have any other flu symptoms but maybe it’s just slow coming?

I got my period last month but it was light (it’s always light) and I’m supposed to get my period this week on Saturday. Does it just sound like the flu coming on slowly?