Pregnancy

I am pregnant and my boyfriend doesnt know yet. I am afraid to tell him bc he is having other legal issues with his other baby mama and i dont wanna cause additional stress to him. I dont know what to do. I want to tell him and i do love him but idk how its gonna affect our relationship. But the more i think about having a baby the more accepting i get and the more i want to tell him. What do i do? I am 4 weeks 4 days pregnant.