No, nothing is wrong with you some of you girls must feel that way but every girl and boy grow at different rates some girls get their period at nine and others 18 so dont worry about it you will get your period soon.
There is nothing secret in puberty. Except the growth in your testis, penis and breasts.
There are many symptoms that could indicate pregnancy. Swollen and tender breasts are one symptom. Weight gain, nausea, and exhaustion are some other more common symptoms. Some or all could be indications that you are pregnant but all could also be symptoms of something else.
Could be either. If she's missed her period, she needs to take a pregnancy test
Your body is working hard to make you into an adult and does not always keep up on all areas. Like some boys look already quite grown up, but still have a high voice. Give it time.
because females grow fast < except in puberty >
No, of course not! People fall in love eventually, but it has nothing to do with puberty except that you are now able to produce a baby.
Except while nursing, your breasts are just fatty masses on your chest. Their size is mostly genetic unless you visit a surgeon.
There really is nothing that can be done except for surgery.
If you haven't reached puberty, then your body does not make sperm to be released, so there isn't really anything you can do about it, except wait.
No. It can temporarily make breasts appear smaller, but there is no way to decrease the size of breasts except weight loss or surgery.
Because she has more hormones in her body that she has ever had before except for puberty.
the breastfeeding explains the tenderness and the cramping, so for now no worries but if you have any other signs get a test and check it out, best of luck