I'm 31+5, and got really panicked at 9 weeks when found out that advice was to avoid peanuts if you or DP had hayfever, eczema or asthma (I'm not allergic to anything but DH has terrible hayfever) as "might" trigger peanut allergy in baby.
Panic even worse because had innocently eaten a few Hersheys peanut butter cups in week six (present for the office from colleague's holiday... mmmm...).
Reading up on it, I find there seems to be no actual scientific proof whatsoever. And although I still am avoiding any food with peanuts, including all Thai food, I'm not scanning packages for those "caution - may contain traces of nuts" labels because practically everything does!
Is this enough? Too much? I hate all the scare-mongering but I'm not strong enough to resist...