Pregnant?

So my husband and I have had a rough year! Our relationship has not been good. We went on a date on our 8th wedding anniversary (8/20) and then were intimate after a very, very long time! This was 2-3 days before ovulation. I took a test yesterday morning (2 days before missed period) and I got a faint line saying I was pregnant (Dollar General store tear), I tested again this morning and the line looked even darker. I guess I’m just freaking out because I’ve read things about ‘chemical pregnancies’ and such.