Unless your computer is running a UNIX-based OS like Macintosh or Linux, then your voice is very, very, very likely to sound male in another computer.
If the music and general sound sounds just fine, then we've successfully located your problem to your microphone. As the settings are default ones, there might be a problem with the mic. itself - hardware-related that is. Changing the mic. on a laptop is a very delicate process, though.
If a recording does sound just fine in another computer, then the problem is instead very likely to be related to "special microphone playback". Although Windows scrapped this thingy when windows XP SP2 arrived.
And if it sounds male in another computer, your mic. is probably the culprit.