Faint line but very early. ADVICE PLEASE

My period does not start for another 12 days but I just took this test because I have been feeling OFF. My nipples are soooo sore, my stomach has been having terrible pains (not cramp like pains), I have been moody, and my taste is off. A little back story, I stopped birth control almost 2 months ago and my husband and I have been ttc. My last period was barely 2 full days versus at least 4-6 days. I know my cycle and everything can be off since I stopped birth control. But I thought maybe my last period could have been implantation bleeding. I don’t have children and I’m new to all of this. What are yalls thoughts? Do you see a faint line too? Any advise would be so helpful!