Need help please!!!

So I took a pregnancy test this afternoon and I watched as the test strip got wet because I'm impatient and as I was watching I saw what appeared to be the control line thinking I had the test backwards however I didn't and then the actual test line came up a few seconds later the line I thought I saw went away slowly? I'm a little confused about it I've taken pregnancy test in the past but I've never had this happen. Now it's just the control line as far as I can tell. Any ideas?