Food Allergies and Pregnancy...help!

Rachel
I am thinking about asking my husband if we could try for a baby soon. I've asked him for a baby before, but he is concerned about my food allergies.. I'm allergic to Apples, Barley, Beef, Dairy, and Pork. If I consume one of these allergens, I'm not on death's bed I just feel yucky..dizzy, nauseated, itchy throat it is just depending on what I consume. I just have to take benadryl and I'll feel better in a few hours. In fact, I don't even have an epi pen because my allergies aren't that bad, and I don't need it. Anyways, I was just wanting to know if anyone had food allergies before they had their children, and how things turned out. Are there any prenatal or other supplements out there that I would be able to take without feeling terrible or activating my allergy? And also if you have any tips for me or statistics that I could give my husband (how to get him to actually think about it and not just say no) or any other advice that would be great! Thanks in advance!!