Hormones havoc? Help please!

Hi everyone. So today I posted on my Facebook about how I wanted a turkey sandwhich but couldn't have it since I was pregnant and "oh the sacrifices we make for our babies from the start" Of course people told me to just heat it up. Well I told them that I worry about the nitrate effecting the hemoglobin in my blood that gets to the baby. I said since I was told not to eat it, that I just couldn't do it regardless. That's even though it's probably a small risk, it's a risk sure enough. But whatever, I was just ranting about my cravings and how of course I'd want them now that I can't have them.