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If you have had unprotected intercourse during your fertile days/ovulation time, then chances of pregnancy cannot be ruled out completely. Pullout method is associated with highest failure rates. Chances of pregnancy resulting due to pre-cum is present as pre-cum is known to contain sperms in it. The abnormality in periods could have been an indication of pregnancy. Few women can have period like bleeding during first few months of pregnancy (decidual bleeding). Wait and watch for your next periods. If pregnancy is suspected, look out for development of any new symptoms. If you do not get your periods within 10 days of expected period dates, or if you get abnormal periods, or if you develop symptoms suggestive of pregnancy, you should consider visiting your gynecologist for thorough 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.
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