Need support

I'm currently going through a rough time in my marriage. My husband is staying with his family while our baby boy and i stay at my families house, I'm 6 weeks pregnant and i feel extremely crapy. i had a miscarriage last month a few days after my grandfather passed away and i was so excited i was pregnant again so quickly but things went extremely down hill and now im not 100% sure if we will continue our marriage or get divorced. I'm so devastated my heart just feels completely shattered im so lost and empty although i have 100% support from my family i know my children dont deserve to see mom and dad fighting all the time and dad drinking and doing drugs. im prayer, hoping and crossing my fingers he will realize he needs to change for the sake of our family😔💔