2nd line????

I'm confused. I still haven't had a period since having my son in October. Over the last week or so I've been nauseated, always hungry, craving foods. I took the bottom one a few days ago with fmu and I swear I see something. The top on I just took and nothing. Is it possible with the frer to have a evap line? Would a evap line show on a inverted picture like this?