Has anyone ever ate a medium rare burger while pregnant?

So I had five guys yesterday and the first bite I took I notice just a super tiny amount of pink. The outside looked cooked but the inside looked like it was but a hint of pink in it. For a five guys burger it would be considered undercooked. It’s not like nice burger restaurant medium rare pink at all. I showed my bf and he told me it wasn’t undercooked but I wondered why I still saw a tiny amount of pink. I enjoyed the burger believing my bf. But I still have a tiny doubt if it was undercooked or not. If it could of been for a five guys burger... could I get listeria? “God forbid” I keep freaking out over it since yesterday