Faint line. Super anxious. Help me feel better!!

Kayla

My doctor recently put me on a DHEA supplement for some hormonal stuff. So we stopped ttc last month. About 5 days ago I noticed my period was late so I took a test... Negative. Then yesterday I spotted a bit and noticed my boobs were sore so I took another test this afternoon. I know I see a second line...but I for some reason im having a hard time getting excited. I feel like I've been waiting so long for a positive and now that I've got one I'm just scared. Why is the line so faint? Why didn't it show a positive when I was 3 days late? (I'm now 8 days late) Has this happened to anyone? Could I have just ovulated late? (I took this pic about 4 min after taking the test, the line is a bit darker now).