Im pregnant and goin thru alot of stresss i need advice help sumthin.?

me and my boy friend are pretty young we been together for a year in a half and everything has been great. but when we found out i was pregnant things started drastically changing he wanted me to have an abortion and i didn't believe in dhatt nore does my family so hee broke up with me and a couple of days later ped and he got with another girl and like im extremely hurt people are telling me that he is not in his right state of mind right now and that he is using her to get ovah me i love him soo much and im soo angry and hurt an i just want to dieeee this is soo much stress i tried working things out and getting baq with him but he said he doesn't want to be wit him and dhat i hurt him he saids i hurt him by not giving him a descion about the baby and i made it seem like what he said didnt matter. should i feel bad should i fight for him i know he loves me and like has any 1 been thru thisz would he *** baq to mhe i need him and with out him im incomplete helpp please because of him i haven't been sleeping right nore eating and i cry every moment