I need advice to strengthen our marriage so we can bond stronger together...?

my husband and i love each other very much... he told me 5 days ago he wanted to spend the rest of his live with me.. And he loves me very much, he is in the military and we have tiffs and fights and were suppose to go to couples counseling up until he filed for legal separation 3 days ago.. he said he loved me the day before and i think the military is pressuring him to divorce me in the near future.. we were both trying and now that I am pregnant with triplets he is leaving me with no place to go no money and i have text him to try and re consider he loves me still because the neighbor says she wanted to check up on me for my husband he has a temp (mpo) on him to where he cant talk to me, and he has done nothing wrong just 3 weeks ago he was buying me roses, giving me foot massages, kissing me and loving me and our unborn children and he was happy .. I have no family to fall on, no job no licensee and I have told him I need him to help me raise theses children.. we love each other so much and when he came with the sepatrion papers it broke my heart and i think it broke his as well because the look on his face was gone and blank...My best friend even talked to him and said he love me very very much... He still had his wedding ring on though and he didn't have much to say..he broke my heart and I want to still try to save my marriage... I am being evicted from my house and all of my belongings on the 12th of march and I have no where to go no money or nothing and i don't have any friends either.. I have been happier up until he filed for separation, I was going to therapy, going to take driving school on the first of march so I can earn more independence.. I have been stuck in this house for 4 weeks and no food in the house and i don't even have anyone who can take me to go get food... He is coming here on tuesday to have me sign more paper work I am hoping he will change his mind we are both and are for the past 3 months madly in love with each other and i think the military is pressuring him to leave me, I now he still loves me very much.. I am hoping he can see within me so we can be one and have a happy family here in california and help me raise our 3 children together.. we are 22 and 23.. we love each other dearly but i don't know what to do? i am so heart broken hurt and everything else I don't even know where I am going to live.. He is the mose nicest guys you would ever meet and it hurts me so bad that he has filed for separation. any suggestions? he will be here with his chain of command tuesday afternoon.. what should I talk to him about.. By the way he is a marine.