Heart broken

Husband and i have been put in a loose loose situation. He is military and has been offered schooling for a promotion but due to it being when i am to give birth he will miss the only birth of his child cause im getting my tubes tied after... n now i dont wanna tell him no cause he worked so hard for it and everyone keeps telling him to go but we r station over 2000 miles away from home and i have no one here to help me with the baby or get me to the hospital or anything and im heart broken the one person i wanted there isnt gonna be there i have asked my family to come but my mom just keeps repeating to me that she already told me she wasnt gonna fly to me to see the baby or her other grandchild... i feel at a loss and just wanna cry all the time... what do i do... and to top it off i dont have a whole lot for the baby and i cant do it alone...