There are no days of a month where a girl is guranteed to not get pregnant
no
yes
a girl can get pregnant anytime, the whole "this many days before or this many days after my period i cant get pregnant" is a myth, shes just as likely to get pregnant no matter when her period was. you should always use birth control if you are not ready for a baby.
pregnant
Yes
Not anymore, she had a baby girl a few days ago.
1 month and 2 days.
27 days
That alone is not a confirmation of being pregnant. A girl may skip her period for too many reasons. But yes a pregnant girl does miss her period.
yes
If you are 76 days pregnant, you have about 28 weeks to go.