Should I be worried? 143 later...

So it's been 143 days since my last pregnancy scare. Here are some details.
-got all four of my periods (little lighter but dark/ bright red with clots)
-had dry sex. I was wearing jeans and underware. Him nothing and he ejaculated on my jeans.
- no bump or pregnancy symptoms
- I wasn't near my fertile window...
Am I safe to say that I'm NOT pregnant? I've been dealing with this scare for MONTHS.
I really need help.