yes you can
Yes
Traveling during the 5th week of pregnancy has to be determined by your doctor. A doctor's will know your health and give you the right advice.
an airplane
feet
Yes - I did it last week in my pick-up!
Week by week pregnancy pictures can be found in books retrieved from the library. There are websites online like Babycenter, Thebump, and 3Dpregnancy that have photos available of week by week pregnancy.
One can find a week by week pregnancy calender from many places. Some of the best sites where one can easily find pregnancy calender are kids health,3d pregnancy and many more.
In some states and countries it's legal up to the 24th week and in others it's up to week 20 so it depends on where you live or is willing to travel.
If you go to a website such as babycenter dot com, you will be able to find a chart that explains pregnancy week by week.
Babycenter's website has a very detailed information chart on how a fetus develops week-by-week during a pregnancy. The site also has an information chart on how twins develop during pregnancy.
No it is far to early to say anything about pregnancy in the first week.
One can find information on pregnancy week by week at a number of online sources. For example, Nestle Baby, Caring for Kids, Huggies, Pregnancy, and WebMD all have helpful information.