Hey ladies , need advice !!!!!

Hey ladies , need advice !!!!!

My period is going on 9 days late , my partner and I had unprotected sex when we where drunk like few weeks back ,but he pulled out and didn't go inside me .

Is there a chance I could be pregnant ?

I did a test at 4 days late and it was negative . When should I do another test ?

I have no one else to ask this .