This forum seems to not be the best place to get fertility advice ... it's possible to get pregnant from sex on the last day of your period, IF you ovulate soon after. Sperm can live up to 5 days or so, so if you ovulate 5 days after the last day of your period, there's def a chance a surviving sperm made it to your egg. Get Toni Weschler's book Taking Charge of Your Fertility---she explains things really well.
Make sure you're not vitamin D deficient, too.
It is unlikely but anything is possible.
Good luck! :)
i dont think we can get pregnant. after our period because we probably had our fertile days
Probably not since you were already fertile