hormonaly or is it him HELP!!

davosha

im 20 weeks and 2 days with my baby boy and my bf and i had a fight because he wont tell his other baby momma he is haven a baby i say it because he still has fellings for her and he being childish waiting tell the baby comes to tell her like i say give the girl a chance to think before the baby comes but he says if he tells her he she be childish and wont let him talk to his kid on the phone for a while but i said think bout it u two had something for 5 years there some type of fellings there and he ws cheatn with her for the first 4 months of are relanship now he hiding this am i crazy or what