The fact that we are only a couple months till Christmas and you said you don't plan to tell family till then then that is your justification - sorry but you couldnt' risk ruining the surprise for family. With that said immediately back in January it needs to be one of the first things you do - even email the families after Christmas to tell them using the ok now that we have sprung the good news on our family we are ready to tell all of our other friends (note using the word friends might help make them take it easier). Then wait for the responses. a congratulatory email means a sigh of relief and no response means ok might have a problem or that they are away for the holidays. There is still plenty of time come January to tell the parents and for you all to start talking about your options.