If a male pentrates a female with his penis is she still a virgin?

There are all sorts of moral, cultural, and religious loopholes that can be applied here. Talk to a trusted adult to ask which ones may apply to you.

However...

The basic answer is no. In very basic terms, a virgin is someone that has never had sexual intercourse. Sexual intercourse is contact between individuals involving penetration. Penile penetration of the vagina is a type of sexual intercourse. If you have had sexual intercourse, you are not a virgin.