The change of getting pregnant a few days or right after your period is very low however it can still happen since my friend was able to get pregnant after she tried a few days after her period.
So you can you can try and if you're lucky you can get pregnant after your period.
However you have the most success of getting pregnant if you wait to try to get pregnant 12 to 14 days before your next period starts as that's when you're the most fertile.