Super Faint Line

I took a pregnancy test this morning, 4 days before my AF is supposed to arrive. I saw a super faint line, which my husband called a shadow! But he saw it! I am so nervous and scared as the last time I had a positive test we miscarried between 5 and 6 weeks. I really don't have a question, I just needed to get this out there. Get it off my chest. I will retest in a few days and see if the line is more visable. Fingers crossed.