Husband passing away

Hello ladies I’m just looking for some encouragement to go on. Me and my husband have four boys and I am currently pregnant. Last week October 8 my husband was in a car accident and died instantly. I literally feel like I can’t breathe I don’t know what to do. I have had tons of family and friends surround me but I don’t know this is the worst feeling ever. I didn’t even know this type of pain exist. I’m trying to stay strong for our children but I just wanna scream. How am I suppose to do this without him this is so unbearable. I don’t know who else to talk to i don’t wanna be a burden on my family and continue to cry to them I’m just so lost without him.