Maybe. Maybe she is pregnant. Female reproductive systems do generally try to be syncronised with other female around them.
it is possible
no
Yes.
well pregnancy symptoms can start prior to period. 1week before your period symptoms may be seen. fatigue,nausea,frequent urination are the signs you can notice.
Yes. Every pregnancy and every person is different.
yes it can at first you will fill the symptoms of a pregnancy but to be positive see a doctor soon as possible.
If you are on/had your period your probably not pregnant, but do a pregnancy test to be sure.
What is a timeline for pregnancy symptoms
Yes. The symptoms can be due to normal illnesses or to hormone fluctuation.
It could be possible, or it could be a sign of a fever.
If you get pregnancy symptoms, take a pregnancy test
If you're not taking the pill, it's always possible to get pregnant, fake symptoms or not.