So I'm now 4 days late.. I've taken 3 test.

1st test was 5 days before my marked period (My boobs were hurting like they've never hurt before so I took a take to be sure) and it came back negative l.

2nd test was 3 days before my marked period because I had a really bad nausea and dizzy spell. It was negative.

3rd one was yesterday.. it was just a simple dollar tree test and it came back negative.

Any idea on what's going on? Nothing has changed in my life and I'm never late. Is there a chance I could and pregnant but the test is still saying no?