So I need ideas!

My husband is deploying very soon, and we know that I need to tell everyone. I'm 3 almost 4 weeks pregnant. And my first doctors appointment is on the 27th of June. I do not plan on telling either one of our families until after the appointment, and making sure everything is okay. I live 14 hours a way from my family and I live 12 hours away from his family. I'm not exactly sure on how to tell everyone. I was thinking of taking a drive down to both places, but my husband doesn't want me driving so far because he's afraid I'll get to tired behind the wheel. Which I understand. I feel wrong if I just call them up and say I am... 
Let me explain something...
Last pregnancy which turned into a Molar pregnancy...
We told everyone within the first 5 weeks...
Everyone had extreme bad, horrible reactions.
My family:
My mom was extremely disappointed, and let me know everytime I talk to her.
My brother, who thinks he's the father figure in my life, practically disowned me and refused to talk to me or see me. When the molar pregnancy happened I was in the hospital for four days and I never saw either my mom or my brother. And after I left the hospital my brother told me he was happy I lost it because I'm to immature to have a kid of my own. ( I was 20 then, and I'm 20 now)
His family:
We told his mom, and she was furious and she wanted us to lie to everyone saying that I was birth control, and it was an accident  even though we know it wasn't (he was 24 at the time) in an agruement later on between me and her she told me to give her the baby so I can go live with my mom.
We told his sister while playing her favorite game Life. When it got to the "choose your gender for your baby" part I turned to ask My husband what he thought it was going to be. At first she was in complete shock and surprise. Then it set in, and she looked between us and asked us "how are you going to support it?" And " you might as well put it up for adoption" 
We told his dad, and he called him irresponsible, and told him he was an idiot because now he's screwed. 
Granted he was working part time at publix and so was I. We were also living with his parents. But he planned on going into the Navy. Which he did. He just graduated C school, and he's leaving on deployment soon. Me on the other hand is still looking for a job, and going to college. Even if I didn't get a job we would still be financially stable because of ththe Navy. I think we are at a great spot to start a family. But from their reactions before I'm a bit afraid to tell everyone.
So any ideas on how to tell everyone? Pleas and thank you :)