HELP!

So this morning I took a test, and nothing came up within the first few seconds so my husband and I just said 'BFN' and went on with our day. Well, I just walked back into our bathroom and found the test with what I think is a VVVVVVVFL! I KNOW it's invalid, but my concern is, what if it came up within the time period, but since it wasn't within seconds, we said no and never went back?! Or am I absolutely crazy? My hubby is still at work right now so I can't ask him... What do you ladies think?!?!