My last period was from August 31-September 6 (normal-heavy). But it was 10 days late, which never happened before.

After I finished the period before that one,(July 31st - August 6th),I had unprotected sex the next three days. Since then I had been using the withdrawal method with my husband.

My next period is supposed to start in a few days, on the 26th. But, since my husband has been worried I could be pregnant because of "dreams" he's been having, I took a test today and a very, VERY faint line appeared in the positive.

Am I pregnant? How far along?

I find it hard to believe your period has never varied, they normally do,

But of course no protection, and as we all know withdraw only reduces the amount of sperm, not stop them, there are still tons of sperm in the early fluids,

So could you be pregnant, yes, you will need to wait and see if you miss your next period. Or go to the doctor or women's clinic for a more professional pregnancy test