mild cramping 4 days after ovulation/coceprion

Shaydi • :) baby dust to you all
It is possible to have inplanation happen 4 days after ovulation? Here's my chart:
​G. to:
​I got a positive Ovulation test (OPK) on the 29th,31st,@3ed and I was firtle the 28th,29th,30th,31st@1st so we had sex on the 29tb,20th,1st,2ed,4th @5th