I've had farm dogs, never spayed/snipped etc (our original was a tart, when in season, she went awandering.....,) Never got caught, obviously choosy, as mum put her in pup twice to the same dog. This was the 1980's, never bothered with us girls playing with her pups (or so we thought) mum couldn't find them one day, then heard something, followed the noise, Silver was carrying them one by one to a new hideout (the coal house!)
1998, my 2 farm dogs did accidentally get together, there was no yodelling or howling so I didn't know my girl was in season. I took her to the vet to have the jab to stop the pups, as the Vet said her pelvis was too narrow.
8 weeks later we were greeted with 1 pup! She lived with her mum for over 12 years, she was meant to be, so I couldn't get rid of her.
Our house dogs have always been spayed due to blood in the house, we don't have dogs as house dogs due to cocking their legs, I know they can be house trained but we found bitches better, all were spayed, the current 2 were spayed last year when they were almost 1 & 2, mainly because I wanted them done at the same time and we.needed to wait for their seasons to synchronise. However, saying that, the one did bleed again, sooner than she should, so the Vet spayed them, they're fine.
The "keep them quiet" idea was a bloody nightmare as neither of them after a couple of days would understand "calm down, you've had major surgery!!"
dog will only get fat if you overfeed it.
Mine, a Chihuahua and a scruffy pup with short legs and long back (but looks gorgeous with her fluffy butt and curved tail over her back) mustn't get heavy, their food is weighed 3 times a day, they have zoomies! If they go too heavy they'll go On a diet!