Every since we been having unprotected sex a lot

What's your concern? When you get pregnant you aren't going to have a period until you have the baby or babies.

And its clear that's what you are trying to do.

My period is 9 days late and Nov it came 6 days late and I spotted for 2 days. Could I be pregnant

Possible... but wait a couple weeks and then take a Home pregnancy test.

Stress can delay the onset of a period for a week or more easily in some women.