Thanks for the photo. I don't see pores either. Another observation is that I don't see any shiny (oily?) scales in the femoral region which is a typical finding in mature males. At 41g, I would expect to see pores and shiny, overlapping elongated scales (in the snout to vent direction) on a male specimen. I would say this looks more female to my eye.
I usually quarantine for at least 45 days and aim for longer if possible. During this time, I can make sure my newbie is eating and pooping well and not harbouring any unwanteds.(e.g. mites). Transitioning to a new home can be stressful so isolating new geckos can help them better cope with many changes to their environment without introducing territorial/ social factors that come with cage mates. While a vet visit would be ideal, I'm not a breeder and don't own a lot of geckos so I am able to keep most in separate tanks permanently. I wouldn't want an undetected disease or disorder infecting my group because I didn't quarantine for long enough. We also handle our group frequently so cross contamination between geckos is also a consideration.