I hope your mum gets better xxoo
And I'm so sorry you didn't get the news you were hoping for .... if it's any consolation I was also hoping my second would be a little sister for my firstborn son. I now have 2 boys and let me tell you, your heart melts when you see them rough and tumbling together! The little one adores his big brother like nothing else, and my first now says girls are icky and he wants this next one to be another boy.
Much as I would love a daughter, going by having pretty much the same pregnancy as the first two I'm guessing boy again.
I wish you much happiness with your son and son-to-be 