HELP HELP

Paige
Okay, I need some help. 
I've never gotten sick when I've eaten pasta, I went to the Cheesecake Factory for my sister 19th birthday tonight. And after eating my food didn't eat but 4 bites and started feeling sick then has some cheesecake of Course someway with the pasta, I started feeling even sicker to my stomach like I was going to throw up. This whole week I've been having all the signs of I could be pregnant, but I just had my period back on the 8th of this month. 
Any idea to what's going on or what I can do to ease the nausea feeling