Hi doctor Can swimming delay periods? Last time we were stressing over late periods but they came 6 days late but lasted 3 days then one day gap and again bleed again. Started swimming first time and body had no previous routine of this much exercise .Had no sex after last periods .can I still be pregnant .last time we had sex was before her 3 to 4 days lasting periods which were s little strange but they came .we are already 7 days late this time no pain and no symptoms of pregnancy .can she be pregnant? Please help .how can we bring periods before they are coming please help.