there a chance i might be pregnant?

Hi,
Welcome to ehealthforum,
If you were during your fertile days at the time of sexual contact/intercourse, then chances of pregnancy cannot be ruled out completely. Pre-cum/pre-ejaculatory fluid is known to contain sperms and no man can be 100% sure that it did not leak out during vaginal penetration. You should have considered taking emergency contraception within 24-48 hours to prevent pregnancy. Wait and watch for your periods. Look out for development of any new symptoms. If periods do not start within 10 days of expected period dates, or if you get abnormal periods, or if you continue to have (or develop new) symptoms suggestive of pregnancy, you should consider visiting your doctor/gynecologist at the earliest for further examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). Take adequate rest. Drink plenty of water. Maintain healthy diet.
If pregnancy gets ruled out and if you intend to remain sexually active, 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.
Take care.