You can read all about it in the link below incl why you get it, how to get rid of it and what it can lead to.
9 months
A pregnancy usually lasts for 9 months
9 months 40 weeks
40 weeks from the last period.
No all the spotting should be light , and not last as long as your normal period. Yes, this is very normal during the early weeks of pregnancy.
9 months
generally pregnancy does not interfere with piercings. if your pregnant and you have your belly button pierced, put a zip tie or long bar in it so the piercing will not tear. its likely that if your tongue is infected that it is not pregnancy related. try getting a long bar, and see if that helps.
3 days.
it lasts for 4months
Pregnancy in ferrets lasts 38-42 days or 6 weeks
It generally ends at the end of the first trimester. Although some women may experience it during the entire pregnancy, others may never experience it at all. I never had morning sickness during my first pregnancy.
Long distance journey during second trimester are considered to be safest. Never the less long journey by air or train is generally very safe during pregnancy.