They can be. Here are some personal experiences:
Yes! it is a good sign! and its also normal in the pregnancy.
For some people they get itchy nipples as early as 2 weeks after sex. But for most people that doesn't start until around 6 weeks of pregnancy. It's different for each woman.
keep lotion,or other body cream on them.coco butter lotion doe's wonder's for me.
The rings around your nipples are what change in colour and are due to the changes in the hormones that your body is creating.
Well, just so you know, NOTHING is wrong with your nipples. if they are itchy, then it means your breasts and nipples are developing. some people have itchy nipples and some others dont. its nothing to be worried about. im a doctor. i KNOW what im talkin about.
Generally not in the first week, because people don't usually get pregnancy symptoms until 2 weeks at the earliest. However, itchy boobs and nipples are common during pregnancy because the boobs are growing and stretching
im only 5 weeks pregnant and I had pregnancy symptoms before i was even far along enough to get a positive pregnancy test such as minor heartburns, horrible breast pain and nipples sore and itchy. And minor stomach cramps and nausea.
Nipples will darken during pregnancy.
Yes it can be, but you can also get these sypmtoms when your period is due or you ovulate!
Sometimes just sweats and irritation from the clothing.
No
Cold, rough clothing rubbing, sexual arousal, menstruation can all cause swollen nipples. So can pregnancy,but this is usually accompanied by some sensation in the breasts, if only a tingling.