Mild Cramping

Aadalas

Okay so my fertile window started on Oct,30 - NOV,4. I BD on the first of November and had cramping during the time of BD. After that day till now I still have mild cramping. Why is this happening? I know that AF comes in a week or two. But the mild cramping doesn’t feel like the cramps I have a couple days before my AF . Do anyone know anything about why this may be happening???

Thank you all in advance!