My boyfriend of 3 1/2 years was killed about 3 months ago, my family says im not coping well. what do i do?

I met my bf when i was in 6th grade and him in 8th. we'd been together ever since. i dnt know, but even at 13, i felt like i had fell in love with him. we have stayed together thru everything and we were 1/2 way happy. then we got pregnant & miscarried, and he started blaming me, so we broke up. hed apologized 100's of times, buh i never fully forgave him. he was going thru some grieving issues and decided to go visit him family for a while in detroit. i didn't want him to go, but he never listens to me. i talked to him the day he died, and i told him i loved and missed him. he said the same. then a few hours later he was shot in a robbery went wrong and was in critical condition in he hospital. i had noway to get to him. i mean im only 16 and i dnt have money for a plane ticket, so his cousin txted me with updates every hour. on saturday june 5th at 6:30 am i got the txt saying he had died of Internal bleeding and a ruptured liver. i have never felt so numb..all i could hear was the blood pounding in my ears...anyway, my family is worried about how im coping, so anyone have any advice?