don't want to tell other family

I'm pregnant with my second about 9 weeks. Our first is 9 months. We been living on an army base but my husband is getting out beginning of March and we will be moving back to our home state. Only our immediate family knows that I'm pregnant again,my mom,sister, and my in laws and that's it. I don't talk to my brother because of issues I had with his girlfriend but she is pregnant with her third,his second..and she's a couple weeks behind me..Our other family members likes aunt's and uncles haven't seen my son since he was a newborn and I know how much they can't wait to see him again when we move back but I really don't want them to know I'm pregnant till I know the gender lol what I'm asking was anyone able to hide it that long?I'm just not ready for the attention and then they going to mention my brother...and that's a touchy subject..