Burping up vomit?

Tiffany • 27 year old Navy Vet, 6 year old daughter. Met the love of my life. Our youngest is almost one. I love my little family.
I have been ttc for a few months. Today I was jonesing for cheesesticks and French-fries so I indulged. 30-1 hour later I'm burping up vomit in my mouth. Not normal for me. Hope this would be a sign but don't want to get too excited. Also has slight nausea, tender breasts, hypersensitive nipples.