I'm now 4 days late had my last one Feb 2th then missed one pill the 10th and continue the rest of my pack the next day then on my off week I had two spots of blood then nothing so I took tested twice got a faint line on both but tested again today and it's definitely negative but still no period but I've also had a few symptoms like more hungry, sore breast, nausea, light headed while feeling shaky. Could I still be pregnant even tho I've had several home tests?