Pregnant but they don’t know me as his GF. Am I going to be seen as an evil person for being pregnant?

So I’ve been seeing this guy for 6 years. He already has a daughter that’s 11 with his ex. I used to hang out with his daughter and him together in the beginning until her mother didn’t want me around until things were serious with him and I. She also said some things about me that weren’t nice years back. He kept telling his daughter and her mom that he didn’t have a GF. So he never gave me the title. His daughter mom reminds the kid that my SO told her when she was 5 that she’d be the only girl in his life that he’ll never have a GF. Fast forward to now his daughters mom is 5 months pregnant by her bf of 10 years and their daughter is even more possessive about her dad. And her mom told my SO to not have any kids any time soon.

But I just found out I’m pregnant and I’m thinking how am I going to be introduced to his daughter again and be pregnant all of a sudden. Am I going to be seen as if I’m evil? Because I’m pregnant when he didn’t wanna have kids to respect his daughters mom wishes and to not upset his daughter? I’m just having a lot of anxiety because ever since her mother didn’t want me around her daughter I’ve been hiding such as I don’t go over when she’s over or I’m staying quiet while he’s on the phone with his daughter.

His family like me and everything it’s just this I’m freaking out on tell him.