Positive after 20 mins

[TankGirl97]

I've been feeling very nauseated all week and it suddenly dawned on me that it feels v similar to morning sickness. Bought some internet cheapy tests and did one this morning (forgot at first so I didn't use fmu). Pic is attached. Now, I glanced after a couple minutes and didn't see a line. When I popped back 20 minutes later, I can see something faint. I've never really understood what an 'evap' is, could this be one?
I don't want another baby, I have 3 lovely kids, a Merina coil and dh is on the waiting list for a vasectomy.
I will test again tomorrow but I'm going to be terrified all day that it's positive.

Phone wouldn't let me upload a photo.....

It looks like a clear positive but it can’t be trusted after 20 minutes. Did you look closely in the time frame or just have a quick glance?

One step tests are awful and didn't show as positive for me for ages after other tests, so you might get a clearer answer using a different brand of test if you have one?

I had one that showed up positive after the time frame and I was pregnant. It didn’t show on other tests for a while.

I don’t know how evaps work, but it could be that.

I hope it all works out for the best.