I Am An American Citizen And I Have Been In Ch For Almost 2 Month And I Wonder Why Would I Have To Leave After 3 Month If They Didnt Stamp My Passport When I Got Here So They Dont Know When I Got Here....

I Could Probably Just Go Back Home And Come Back As Soon As I Want Cause I Have No Stamp?

I replied you other post already: Stamps are 20th century. Your passport got scanned at the airport and "they" know exactly when you arrived here.

ok thanks for that......
what if i just go to germany or something by car or train cause they wont do anything to my passport andcome back by plane that they will...but they wont know how much time i have been in germany and i can say i have been for over a month..

Since Germany is part of schengen, no it does not work that way. You have to leave the schengen area completely otherwise you might get banned from all the schengen countries.

so i have no option?

That is correct

ok thanks a lot...you were very helpful...

What about a quick trip to Turkey or Morocco? Does that count as a proper exit from Schengen-land? It seems too easy. I assume one must be gone for a certain amount of time. Would a weekend in Istanbul then allow you to return to CH for another valid three months? Does anyone know how this works?

You're allowed to stay a maximum of 90 days within any 180 day period.

So you could spend three months in Morocco or Turkey.

Nope - you have to be absent for 90 days (or three months? can't remember.)

Hi, for what I've searched the options to leave from the Schengen land, are Morocco, Turkey or the UK. The problem is that you only can stay 90 days in a semester. So if you are looking for staying in CH, I advice you to hire a language course, or something similar, and then you are able to ask for the visa and stay a little longer.
I'm argentinean and I'm going to study at St Gallen from Jan to March, and like you, I want to stay a couple of months after finishing my studies.
What I've planned is to travel to London after the 90 days in CH, but if I like CH and St Gallen, I will look for german courses and ask for the visa to stay 2 months.
Can anyone suggests something else? do I am correct?
Thanks for any advice
Fran

get married?

I wouldn't worry about it. You come from a country that is not on the watchlist (i.e. Balkans). I had a friend from California who lived here 7 years without a permit, giving informal conversational English lessons in Cafe's for 50 francs an hour. She only got caught when she applied to immigration to get a visa to stay. Once she was on the radar she was doomed.

Just like it is for Europeans in the US...

Kinda like my options in the US, if I abuse my immigration status as a temporary visitor, I risk deportation and losing the right to return when I please.

Now do you really want to be an illegal immigrant in a country half the size of Ireland?