pregnant, and depressed and marriage is falling apart.

so my husband told me that he loves me but is no longer in love with me. cause of my weight and im not the same person i use to be. im 3 mths pregnant. and i haven't cheated on him he hasnt cheated on me. he said today that he will give me six mths for me to work on this marriage. cause he dont want to kick me out while i am pregnant. but in six mths i will have.a new born. and i have our 5 year old son. idk what to do i dont want to lose my marriage. but i also feel hopeless, alone, unloved, depressed, scared. 😢😢