Evap line or BFP?!?!?

Ok so I am 1 day late as of today. My cycles are typically 28 days and if I don't start on the 28th day, I always start on the next day which would have been today. I had slight cramping a couple days ago and then it stopped. My didn't start hurting until late last night and my are HUGE!!! I went to the bathroom twice today thinking I had started, nothing. So after work I went and bought some lil cheap tests and took one. The kind you gotta use a dropper for. I did it and the screen area turned purple I saw the control line but didn't see a positive line, although the screen was still purple. About 5 hours later I happened to look at it again and there is a 2nd line and the control line is still there as well. There was no 2nd line within the minute or so after I took it and I just gave up. So is that a evap line or BFP? I plan to retest in the morning, but still want opinions. Lol. A few other weird things.....never had a uti or yeast infection. A few days ago I started having this urge to pee and it kinda burned, but was not cloudy and no weird smell. I've been emotional alot and very ill. But may just be reading too much into it. Please give ur opinions!! Thanks!!! Baby dust to all!!!!