feeling depressed and defeated

so I found out I was expecting baby #3 the day after my dh deployed we tried for a year and a half. I miscarried the 21st of December I was about 7-8 weeks. This is my second miscarriage with no real reason why. I want to start ttc right away but obviously that's a little hard with my husband being on the other side of the world.. I was so excited when I found out and just feel so let down it doesn't help that I'm alone with two small children and no family or friends here... Idk just needed someone to talk to...