Hi,
I can understand how you feel, I have 3 girls and am pregnant again, hoping for a boy this time so I can experience something different! Try not to see it as entirely negative, out of me and my brother he is closer to my mum than I am, I get on better with my MIL! I know guys who are very close to their mum (and yes some are gay but not all), i think it comes down to the way that individual child is brought up as to whether they are close or not....I am sure you are a wonderful mum and your kids (regardless of their sex) will want to spend as much time as possible with you