Second PCS, about to make the call

Lo
My husband can "call" in June for our PCS, we are presently at our first post. I am due in October and have heard the move could take place in as few as 3mos or more than 12. My coworkers don't seem to understand that, as soon as I said I am due in October and we may move as soon as Oct, they are fixated on me leaving that date. Also people say he might get location options but will have to choose then and there? No chance to discuss with me? I'd love to give birth here at this post. I know what will happen will happen but any comments would be appreciated I am just curious. 😅