My ex bf died and I don't know what to do anymore ?

He died last month. Ever since he died everything has changed. We weren't even together at that time but we went out for years. I broke up with him like 3 weeks before it happened. I was pregnant wit his baby and I didn't even tell him. He loved babies and If I told him he would have been happy but I wanted to wait a little. Before he died we got in a big arguement and I said some messed up stuff to him. I never saw him after that and it's my fault if I would have jus shut up and listened to him it would have never happened. I feel guilt for it because I made him really angry and I didn't tell him. He would have been alive if it wasn't for me. Kids at school and my parents are pissing me off because they all wanna talk and see if I'm ok and it's just annoying me. They don't even know I'm pregnant and I can't tell them. I'm only 16. I jus feel like runnin away and never comin back to them. How do I make everyone jus leave me alone ? I want to end my life already I can't take it anymore.