Pregnant with negative result ?

Okay so I have regular periods they come on the 24th every month and last 5-6 days but my period completely skipped this month. I tested three times within the past three weeks . It’s now been two whole months since the start of my last period and I wanted to know if anyone has tested negative but still ended up pregnant? I’ve had minor symptoms and if I’m being 100% honest we’ve only been using the pull out method.

Edit: I also forgot to mention that I had a super light pink discharge like a week before my missed period which I was kind of guessing was implantation bleeding.