What are my chances of getting pregnant 2 days after my period ended? It was unprotected and he did ejaculate inside me. I have an 18 month old kid and with him I got pregnant only 1 day after my period ended. I have a steady 25 day cycle

You can't calculate odds on this the way you can with the roll of two dice.
Each woman's chemistry is different from day to day, year to year, as are the sperm involved.
And what if you were in the 5% group? You'd still be just as pregnant as you would be if you were in the 95% group. Countless women have conceived from one time sex, during their periods, on BC, on 2 kinds of BC, after tubes tied. I even know a woman who conceived and bore a healthy child after having her uterus removed. (A tiny amount was left and it still expanded to hold the baby. 'Impossible' said the doctors.)

If you got pregnant a day after your period before than it is likely that you could be pregnant.. on average a woman is most likely to catch 14 days after her period ends as this is when she ovulates and it lasts for approximately 3-4 days. But your ovulation period might be different, so I wouldn't risk the wait. You can still take the morning after pill for up to 3 days after intercourse. If it is too late and don't want to wait until your next period to find out then go to your doctor. Hope this info helps. Good luck!

There is a chance, good chance, bad chance you can't put a number to it. But yes you could be