I am so lost and hurt

Short story is my dad borrowed our trailer and now hes car isnt working properally and he droped the trailer off at my sisters and we need our trailer for the weekend so we said to my dad we will just pick it up for him we got there and hooked it up and the trailer lights didnt work so my partner starts dipping it because my dads car is wired up dogey and it obviously blew the railer lights, so he starts taking it out on me in the car on the way back calling me a lazy cunt and he hates my family and sick of doing shit for them, our one year old daughter is in the back while he is yelling at me and he said he is sick of my dumb ass and all this and he is always puttinf me down if i dont know how to do something and i yelled and said go get with someone else who is up to your standards then because im obviously not the person yoh want to be with, he then grabbed my arm and pushed me against the door and told me to get out of the car and tthat when we get home hes leaving me, i just cried and cried the whole way home and didnt speak to him i never knew he would do that to me, hes now acting all fine but im so heart broken i cant look at him.. im also 11 weeks pregnant and i doznt want this to grt worse i honestly feel its best for me to leave but i hate broken familys anf i literally have nothing besides him..