I'm 4 months pregnant and my BF almost killed my baby

😭 I'm 4 months pregnant and today my bf and i had an argument, he accused me of doing something (cheating) and started to question me but I didn't talk at all snd i closed my eyes... then he got angry and he pushed me to the bed and with his knee he  put all his weight on my belly...😭😭😭 he wanted to kill my baby and he tried to strangle me... I don't have anyone to go to...  alone and scared. I don't know what to do...!???