Intrusive thoughts cycle

My husband and I are going away for a quick ski trip Friday-Sunday. We leave my kids (4, 3, and 1) with my mom. This cycle ALWAYS happens when we leave the kids… leading up to the trip I become more and more excited to go away and have some kid free time. The day before/morning of leaving I get increasingly paranoid and have intrusive thoughts about “what if we die?” I sometimes get emotional as we’ll get into the car and go away (never in front of the kids) it lasts sometimes for 5-10 min and then subsides as we leave. I know they’re safe with my mom. Logically, I know that everything will be fine but I hate the feelings I get habitually when we leave. When I am having my intrusive thoughts I think weird things like “is this a sign we shouldn’t go?!” I sometimes try to reason with myself by saying “statistically it’s very rare to have things like this happen. “ to then which I think “but you hear sad stories like this on the news etc all the time…” Is this common? How do I overcome this? We don’t have getaways like this often. Maybe a night or two every 8-9 mos or so, but it really does bum me out right before a trip that’s supposed to be fun, and careless. I also believe it to be healthy to leave the kids now and again to have a fresh start and rekindle with my husband….help and advice are appreciated!

TLDR— how to deal with intrusive thoughts of my husband and I tragically dying and leaving my kids parentless whenever we getaway for an overnight?