Ughhh Yuck (possibly TMI)

So I went to make some food for breakfast and next thing I know I've felt so sick and thrown up (mostly water) and continued for about 4 mins. Started having strong contractions. Now I don't feel sick anymore but geez what does this mean? I'm 38+6 today. Laying down and the contractions aren't as intense. Haven't eaten anything strange/different....???