fluid less than a drop can make me pregnent?

Hi,
Welcome to ehealthforum,
Pre-cum/pre-ejaculatory fluid is known to contain sperms (chances of sperms being present are high if prior urination has not been done). If it has come in contact with vagina (fingering or genital contact) and if you were during your fertile days at the time of sexual contact, chances of pregnancy cannot be ruled out completely. Wait and watch for your periods. Look out for development of any other new symptoms if pregnancy is suspected. If periods do not start within 10 days of expected period dates, or if you get abnormal periods, or if you suspect chances of pregnancy, consider visiting your doctor/gynecologist at the earliest for thorough examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). If pregnancy gets ruled out, and if you are not ready for pregnancy, but intend to remain sexually active, you should consider visiting your gynecologist to get started on suitable regular birth control measures to be protected (after your periods). Be regular with birth control use as instructed. Avoid having unprotected sexual contact if you are not ready for pregnancy.
Take care.