Hi,
I had food poisioning twice in my first pregnancy and both times i thought i was going into premature labour. Since having my child and going through labour, i can honestly, honestly say food poisoning was worst than labour. Ive had it before when not pregnant, and was not this bad. Funny thing is DH went to Maccas and got me a strawberry sundae one night. 3 hours later i was on the toilet floor literally.
My second bout was a salad sandwich from a takeaway joint.

My only advice is i be extremely careful (more than usual) with what goes in your gob - i think we're more suspectible to food poisioning when we're preggers - are defensives are a bit down busy looking after the bubs inside........