Have you had a baby in the fairly recent past? Leaking is not usually associated with early pregnancy in most cases. For most women it does not occur until the second or third trimester, if at all. Sex drive can fluctuate throughout a regular cycle as hormones shift.
Sometimes leaking from the breasts has nothing to do with pregnancy, or a past pregnancy, and would need to be checked.

Have you missed a period? If you suspect a possible pregnancy, try a pregnancy test.