Plumbing – Hitting studs and not pipes

pipeplumbingstuds

I'm mounting a vanity and mirror in a small half bathroom and there's only 1 stud to hit behind my drywall (1990's build). However, this stud seems to be flanked on either side with pipes. To make matters worse, there is another bathroom right above this one so I must assume both the copper pipes and the drain pipe continues straight up.

So my question: how do I hit this stud perfectly and not the pipes, and secondly how do I place drywall anchors on either side of the stud for additional support without hitting the pipes?

Attached are some photos. The magnets are stuck to drywall screws/nails.

Zoomed out
Zoomed in

UPDATE: Here's another picture after I've probed into the wall with a metal hanger (those are hard to find these days!) I believe the pin prick my screwdriver is pointing to is the center of the stud as the hole to the left of it just barely graced the left side of wood. But how is that possible with where the drain pipe is below this? I still don't have confidence in what I'm seeing.
still unsure

One more photo showing this stud's relation to the only other stud that isn't in one of the corners of the room.
enter image description here

Best Answer

If the mirror is not over 50 lbs or more you can use picture hooks that are rated for 75 lbs that go only into the drywall.

Drywall will hold it, it is not like the wall vibrates or anything like that to make them loose. Besides the nails are set at an angle so it keeps hanging, not able to slide out.

enter image description here