While having period can you inpregnate a girl?

It is highly unlikely to impregnate a girl while she is on her period. Menstruation is the shedding of the lining of the uterus, and during this time, there is usually no egg released for fertilization. However, it is important to note that there is still a small chance of pregnancy if unprotected intercourse occurs during this time, as sperm can survive for several days inside the female reproductive tract. If conception were to occur, the fertilized egg would not implant in the uterine lining as it has been shed, and would instead be expelled with the menstrual flow.