Hi there,

I have just read a lot on this as I have been craving peanut butter and was also concerned.
Apparently, and you can read much to confirm this, you only need worry if you or your hub have a peanut allergy yourself. You eating peanut butter can then trigger the allergy in the foetus.
They suggest you should also be careful if you or hub have other allergies such as ezcsma, asthma or hayfever.
So, hope that helps. Sorry if it spoils your craving as it did mine!