Hahaha could be me! I would add:
Telling people I'm on antibiotics so can't drink, or I'm happy being the driver!
Finding myself in the maternity section of clothes shops, staring longingly at clothes with space for a bump.
I like some of your no children excuses, colleague brought a new baby in last week and another colleague caught me gazing longingly at the baby! OOPs!
Also find myself putting off some future plans with my DH by saying "we could be pg by then".
Hope it happens for us all soon, xxx