first time trying PE

… is it normal… to have your wife tells you your penis feels much bigger tonight after the first time you’ve done the work out and she doesnt know a thing about you doing it?…..w

Yes. If you did some jelqing, you could have had a temporary girth gain. Keep with it and that temporary gain will become solid.

:) Great!

Welcome to the forum liquidsnow. May your gains be great, and your life enriched.