Can you get pregnant if a guy ejaculates on your thigh?

Hi,
Welcome to ehealthforum,
The pre-cum/pre-ejaculatory fluid is known to contain sperms. If there has been direct contact of semen or pre-cum with vagina, chances of pregnancy cannot be ruled out completely. Vaginal intercourse can lead to pregnancy due to pre-cum/pre-ejaculatory fluid leak (especially if the intercourse was around the time of your ovulation) as no man can be 100% sure that pre-cum/ pre-ejaculatory fluid did not leak out during vaginal penetration. Wait and watch for your next periods. If they do not start within 10 days of expected period dates (sometimes they can be delayed by 5-10 days due to stress), you should consider visiting your doctor/gynecologist for further examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). Look out for development of any other new symptoms suggestive of early pregnancy.
Take care.