I have been lacto-ovo vegetarian for 17 years and have had 2 pregnancies and breastfed my 2 gorgeous girls both for over a year afterwards. They are both bright, healthy and normal kids with no developmental issues. I had no iron issues until the third trimester but then took an iron supplement. I also had all my levels tested prior to getting pregnant so I had a measure to start from to make sure there was nothing I needed prior to getting pregnant. I just maintained my normal diet and got some vegetarian pregnancy vitamins.