advise please

im 16 weeks pregnant and i found out i was pregnant a week after my missed period so i dont know how far along i was there. anyway i told my boyfriend and he didnt inow what to say as he didnt want kida this early. we are both 20. he said he would be there for me and support me. but the only thing that is bugging me is that he still hasnt told his family, all mine knew after a few weeks so i dont know why he hasnt told his. he keeps making excuses up like he hasnt seen them or that his dad is to busy or there is someone always around. his mam and dad seperated so he stays at each parents every other night so he does see them. and ive told him even if his step mam is aroind he can still tell his dad or when he is wat his mams and her partener is around he can still tell her as they will find out eventually. i just dont know what to do. and he works so im trying to get a little money off him to by baby stuff but he always forgets and he spends it or he doesnt get paid on time so when he does he spends it. i love him but my family says i need to leave him as he isnt putting anything in to the situation. advise please i dont know what to do