38 weeks and threw up?

I haven't eaten anything unusual and haven't felt sick all day but suddenly felt nauseous and threw up everything in my tummy. I cooked chicken for lunch and dinner that I bought 5 days ago but my SO doesn't feel sick and it was cooked properly so I don't think it was off or anything. I'm not the type of person to ever throw up but I don't feel any better :-/ should I call the hospital and see what the midwives say or is it okay to just wait and see if I get any worse? It's night time here in Aus so I'm not sure what to do