I have the skyla IUD and every month I always take a pregnancy test because alot of the side effects are just like pregnancy symptoms. Lately i’ve been feeling completely off way too tired than the usual and nauseous didn’t think much of it because this always happens before I start my period but what made me test today is that my dog has been freaking out so much over nothing lately and has been too attached, and this is how she was acting when I got pregnant with my first daughter. I see a line with but with no tint do you ladies see what im talking about?? This has never happened since I got my IUD

What does this mean??