Am i pregnant? I’m worried.

My period is delayed for how many days already. We use the withdrawal method. But on the 24th of November that we had sex, we didn’t pull out. I think we are safe on that period coz my period is still within that week. Now I’m worried coz up to now, my period hasn’t come yet. Is it possible that i could be pregnant? Usually my period comes late by 1 week only.

In addition to that, on the 17th of December, I had a spotting. A week before my expected period.

What do you think guys?