What Are My Chances Of Pregnancy After Unprotected Sex On Day 14 Of A Short Menstrual Cycle?

I would like an Obs doctor to help out. So I am 27years. I have a very short mentrual cycle(19-21days). My ovulation day is so confusing because it s never the 14th day. Counting from the last day of my periods untill monday ths week that gave me 14days and on the day I had unprotected sex with my partner now I am worried about chances of getting pregnant. I didnt take morning after pills. They make me bleed for morethan day 10days. I am really worried ei not that the child would be a burden or something but I always wanted to plan my kids.