madam my expected delivery date Oct 10th but in middle my womb was very tightly few days back I consult my doctor sep 18th he said that delivery will be with in one week or 10 days from the date of sep 18th checkup date. now before 3days onwards iam getting headache and backache and lightly white discharge and womb moments were very tighten and releasing is it is delivery symptoms? plse tell me madam