Territorial Cat Help

Kayla

Okay everyone so I have two male cats ( both are indoor cats) one 5 years old that isn't fixed and the other is about 4 and is fixed. Moved into a new house a few months ago expecting them to mark their territory a little especially since the previous Tennant had cats but nothing happened (awesome!). Well fast forward to this Wednesday I came down with what I assumed was the flu and couldn't really interact with the animals aside from feeding them. Well one of them decided to mart his territory on my husband's lunchbox that was on the stove, yesterday the bed and bedroom door got sprayed and today I went to get a muffin that was leftover from yesterday only to find that they had been sprayed (after I had put it in my mouth 🤢). Is there any way to correct this behavior? I'm 31 weeks pregnant and I'm at my wits end with this. I'm fairly sure it's the older cat doing this but I'm not ruling the other one out just in case. Any help would be appreciated!