AiO? My wife just got a positive pregnancy test. I've had a vasectomy for 15 years

There is an update. https://www.reddit.com/r/AmIOverreacting/s/jAdgogsjC8

So my wife of over 25 years just showed me a positive pregnancy test. I've had a vasectomy since just after our 18 yo twins were born.

She's freaking out about the pregnancy and the fact that I've had a vasectomy.

I've been calm and supportive. I'm saying I'm fine. I really can't even think of a single time she has a chance to screw around.

I'm going to make an appointment with a urologist.

I am still freaking the fuck out in my head.

This happened an hour ago and it's just weird.

I'm 56 and she's 50, which is way to old to have a kid.

ETA Y'all are awesome.

Someone mentioned peri-menopause can cause false positives and a Google search shows this to be accurate. Rare but it happens. I've already mentioned it to her and her doctor has her on the schedule tomorrow. The complete ending of freaking out on her part pretty much put my anxiety to rest. I'll update in case anyone wants to know.