I get cramps while ovulating and after ovulating,seems I had to be different I couldn't just get them once but not all women suffer the same symptoms and we all ovulate differently,some women have no cramps,some feel slight pain,and for others it is a painful experience,in most cases its a sharp jabbing pain in the lower region just above the pelvic,on either the left side or the right depending on which side is ovulating,at that time.
Generally while you are ovulating, but every woman is different.
I have never done this, I only cramp when on my cycle. So it would depend on your body and how it behaves. Hope this helps.