or the other question, what should we not eat?
I often counsel women to eat well. Eat the best food you can access.
Here's a blog with some good advice. (BTW I have no idea what link there is between phlebotomy - taking blood from veins - with a healthy diet in pregnancy.)
It's a good list. You'd have to be a pretty fussy eater not to be able to satisfy yourself from this.
Have a look at the list, and let me know if your favourite is not included. One I would add is dates. They are good, and take care of sluggish bowels at the same time. Anyone watching sugar intake would need to limit the number of dates you eat: they are very sweet.
You may also enjoy checking out the Food Standards Australia and New Zealand (FSANZ) website page Thinking about getting pregnant in 2010 – vital information about what's good to eat and drink.
Also the brochure
and the web videos