They’re just being nice by inviting you, you can always say no… they probably don’t want you to feel left out by not inviting you
If they're your friends, why not just explain how you're feeling?
Maybe its just me being over sensitive..it just annoys me having to explain every weekend people that I cannot go out especially since we live in central London and only rely on public transport, i was hoping people will be mire flexible than just automatically expect me to go out. It just creates unnecessary stress which is not needed.
Perhaps just send a message to all your friends saying that you appreciate being asked to meet them but you feel you need to stay home and relax in the run up to the birth, as it’s becoming increasingly uncomfortable for you to move about and you don’t want to risk being too far from home in the event you go into labour.
Why would you need to come up with excuses? Just tell them you appreciate them trying to include you but they don't have to these next few weeks as you want to relax. They may want to reassure you they still value you as a friend and don't realize it's causing you stress x
I’m very lucky to have understanding friends. I would just say you don’t have much energy, maybe if you have the space have them over instead but get them to bring treats or whatever. If you would rather have time alone though they should respect that, you are growing a baby so understandably are tired and want to make the most of the quiet!