I once become more and more certain that my current T was pregnant, over the course of several weeks. Eventually I became so worked up about it (my previous T had terminated with me when she was expecting) that I broke down and "accused" her of being pregnant.
She wasn't pregnant. She'd just been putting on weight.
Don't count your chickens (babies?) before they hatch (are conceived??)! Best thing you can do is ask and then deal with the reality rather than the fear.