Evap lines?

Lynsey

So the first test i took was last night and it had a tiny line on it but it was a minute or so outside the time frame, then this morning i looked again (i know your not mean too) and it was darker, i go abroad on thursday and i wanted too double check so i grabbed another test and that one is negative, so would i be right in assuming the 1st one is an evap?

Also missed my period by 10 days? Ive been late before just never this late