I inherited my Grandad's Kodak Retinette whe my grandmother died in 2007... I actually received the camera in 2012! A year later, I decided to try it out and discovered it had a film still in it. Two years after THAT I got said film developed! These are a couple of pics from the roll.
This, consensus established was probably shot around 1987. I recall the old boy going into a bit of a flurry and running out with his camera when he saw the veteran car rally gong past.
This, from the same roll of film, consensus concluded was probably shot on their holiday to the Lake district in 1977, we 'think'!
The film must have been in the camera for the best part of a decade, between being 'loaded' and being 'unfinished', remained there another decade, until he died, and another until I inherited it, and half of one more, before I got the film souped!
This is probably a more 'extreme' example, but, no, you shouldn't need to worry about the film being left in camera!
In years past, the average family took 20 photo's a year... camera's often sat in draws for years between shots! Going through some old family negatives, I have some that show just that! One roll in particular, a 120 cartridge film; that has pictures covering an entire decade, starting with some holiday snaps of my father, ages 16, through his wedding, aged 20, and finishing with a silver jubilee flower display when he was 26!
A few weeks or months in the camera shouldn't be an issue.