The day of the first day of the cycle before the missed period is taken as the first day of your pregnancy.
For example if you have missed your first period in August and the last month you had periods on 25th July. Then 25th July will be your first day of pregnancy according to most of the doctors.
For example if you have missed your first period in August and the last month you had periods on 25th July. Then 25th July will be your first day of pregnancy according to most of the doctors.