Nitrates and pregnancy

So I knew we weren’t supposed to eat deli meats and things because of listeria but I guess I never realized that nitrates were such a big issue. My doctor never mentioned to me about things I couldn’t eat so everything I’m learning I have been learning on my own. I’m 8 weeks 5 days and in the last few weeks I have eaten a lot of different foods that have had bacon, or ham, or pepperoni, or sausage on it and never really thought twice about it because it was all heated through. It isn’t an every single day thing but I’d say especially in the last 2 weeks it was 4 to 5 days I ate something that would have nitrates. I am so worried about the damage I could have done to my baby now. Has anyone else been eating these foods too?