Put her up... you'll be kicking yourself in the a$$ if something happened to her.
X 20 .....Why would you want to take the risk of losing her and the pups just because of some old timers idea? Bein' as I'm 60 years old, that probably qualifies me as an old timer, or old fart as Trent calls us,
....as long as a pregnant female gets proper exercize, I can see no reason that hunting her hard during her pregnancy would make the pups stronger....makes no sense to me. What you feed her, seems to me, would have much more influence on the strength of her pups than hunting her while she's pregnant. Heck, half of this stuff you hear from 'old timers' is just crap they've heard from some other 'old timer' anyway.....the Lord gave you sense to use during your time here.....so I say use it. If it seems like it's 'not quite right'.....then there's a reason for that....it isn't! Good luck with your pups bud,.....keep us posted.