Highschoolmusical. Sorry to hear you are so exhausted and also that you have lost four pregnancies.
Obviously it is your choice which topics you post (or not) in... However, AIBU is often the setting for people being sarcastic/jokey as the subject matter is often lighthearted.
Personally in your situation I would probably have chosen to post in pregnancy, and also put slighter more info in my op. I'm not saying that you should have done, just that is what I would have done.
I think then you may have got more understanding and support.
If you read back through your initial posts, complete with I think people thought you were being jokey and responded accordingly.