Overthinking but feels justified

Mary

Okay so this is my second pregnancy and second dad to the baby, my sons father is no longer in the picture due to attempted suicide in front of him when he was 2 and some months. He is now 5 , he understands that my boyfriend is not his real father and remembers who is real one is still , which Is good in some ways. Where my mind won't stop though is the dad word , we try to not say it because of the incident with his dad, and with a new baby coming , it's going to have to know that he is daddy which means saying dad and daddy a lot , I don't want my son feeling any sort of different or awkward. He calls my boyfriend dad sometimes or refers to him as dad when talking to other people , and Patrick doesn't get mad or anything , he just lets it happen but we try to reinforce that he is patrick instead of referring to him as dad. We don't want to have Ryan calling him dad also because Patrick doesn't want to take that title from Ryan's real dad because of he chance he might pop back up again in his life which is expected eventually when Ryan is a certain age. So my question is , how do we go about the dad thing with Ryan around? Any kind of opinion is helpful, it's a very hard situation for me to figure out.