Welcome to HCM.
You are about 33yrs old and married last year. You want to use OCP
and having regular period with P0+0.
Best thing is use of Combined OCP that has less failure rate.
I suggest to use FEMILON
tab to be taken on 5th day of cycle and continue up to 25th day,then 7days gap.( 3wks on+ 1wk off)
This to be continued for next cycles also.
Have a good day.