This is my 3rd pregnancy, my two before this I got pregnant around the commonly 14th day after my period...with this one it was a shock because I conceived about a week after my period. So I ovulated early as well. They say that traveling can throw your ovulation off, and I had just moved from a different state, so if you moved or was on vacation of some sort that may have had something to do with your off ovulation
It depends on when you ovulate. Some women follow the average of day 14 ovulation. Many do not. Some ovulate earlier, some later.