Late 5 days negative pregnancy test.

Hey everyone I’m really anxious because I haven’t been on birth control in like a year and have been using condoms with my boyfriend. This past week I was late 5 days so I took a pregnancy test at 3 days late and it was negative. I have been having a longer cycle since getting off BC but it’s never been this late.

I DONT WANT TO BE PREGNANT BTW. Any advice? Could it be stress?