If your period was lighter than usual it may have been an implantation bleed. Take a home pregnancy test.
Don't know when you had unprotected sex last but yes, you can be and it can also be the period on it's way. The symptoms are similar.
For sure, if she has passed through puberty (has armpit hair, breasts, her "period", and so on.)
Pregnant women usually will first realize they are pregnant when they miss their period. Other symptoms include tenderness in the breasts and morning sickness.
Absolutely not. Period.
Well, of course. Menstruation is what prepares the uterus for the implantation of the fertilized egg during the ovulation that follows it. You can't get pregnant DURING your period (usually).
No. Just because your breasts are sore doesn't mean that you are pregnant. When you get your period, your breasts tend to get sore too. Sore breasts aren't the only sign of pregnancy.
When in doubt, take a pregnancy test. Usually the first sign of pregnancy is a missed period and sore breasts.
If you had your period that very month and had no sexual activity after your period then you cannot be pregnant. Plus, it's normal to have sore breasts and feel nauseous when you're ovulating. PLUS, you cannot have symptoms that early.
If you think that you are pregnant, the only way to be sure is to take the test. You can buy it at the pharmacy.
Yes, or right before their period.
Maybe, but my guess is that what you describe is part of the period. Breasts are often sore during and after a period.
It usually happens to girls from the age of 10-16. Girls usually grow small breasts and pubic hair before their period begins. After that, they can get pregnant when having sex.
When you are on/having your period, it is usually when you have one of the highest chances of getting pregnant.