Pregnancy Test

guys i’m so lost. i’m 14dpo, 2 days late for my period and all i’ve been getting are faint lines but it’s been a couple days since i tested. i took a test last night and a faint line popped up in the timeframe and became pink overtime but is still very faint. i don’t know what’s going on, my period is always regular. should i schedule an appointment with my doctor or just wait it out? i’m not sure why i’m still getting faint lines..