What do you think happened?

So on Thursday I was at work, I came over all hot and dizzy! Then I was sick twice, I work with children so I had to leave straight away! But I met my partner of 4 months and walked home to get some fresh air. I got home and was non stop being sick till 11/12 at night with temperature... I don't know if it was a bug or I eat something bad or I'm pregnant... I've had sore boobs and are getting darker... It's been weird aswell my god son didn't like me much and wanna have cuddles before but lately he wanted cuddles and fallen asleep on me and I don't know he always points to my belly and laughs, is this a sign? 
Please help me I'm so confused