Over powering smell of cat urine

[guessmyage11]

I've came downstairs this morning to a smell and am concerned a cats sprayed in my living room or hallway. There was a cat hanging round the cat flap last night. We have a 9 month old female kitten who is yet to be spayed (booked in next week) do you think she's potentially attracting males? Help! How do I locate and get rid of the smell

Is it a microchip catflap or was it locked? It could have been your own cat as females can spray too

No just a normal cat flap. What was also strange was that her wet and dry food bowl was completely empty which it never usually is in the morning so I suspect the other cat helped its self to her food too x

She will definitely be attracting males. She could also be scent marking herself.

Hang on, is this cat getting in your house and potentially having sex with your female?

Why is the catflap not locked? Are you letting her out despite her not being spayed? If male cats can get in then she could end up pregnant