What happened?

✨✨Sian✨✨ • I'm 22 my fiancé is 24, we have a 2 year old little boy and were expecting our second baby in September 2016!
I got really strong positives yesterday, but my the time my oh got home they had faded, although you could still see them. We decided I'd do another one this morning so he could see how dark it was, I've just done it and you can barely see the line... FMU, within the time limit and 2 days before AF. I can still see it, and it's pink but so faint!
I even did one yesterday afternoon that was stronger than this after holding my urine for about 2 hours...