Maybe
yes
It can be a sign of pregnancy but EVERY women are different.
Yes it can be or a sign your soap is irritating your nipples or bra is rubbing against your nipples, etc.
It can be but, also it can mean a lot of other things.
This is different for everyone but mine started right away.
close to period
it really depents how far into the pregnancy you are....
after 69 days
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.
Are you having any other symptoms then that?
Yes it is