Mario Na
Mario Na voted up Cookie Roma's answer
I am 23 yrs old. My last period was at the end of January. I had sex feb. 7th , and it is now March and still no period . Been cramping the last 2 days. I don't really have any symptoms of pregnancy. Could I still be pregnant with no symptoms???

Of course you COULD be pregnant.  I have a friend who has 3 kids. While she was married and they wanted children, she could never tell until she was 7 or 8 months along. 

Mario Na
Mario Na voted up John Doe's answer
I am 23 yrs old. My last period was at the end of January. I had sex feb. 7th , and it is now March and still no period . Been cramping the last 2 days. I don't really have any symptoms of pregnancy. Could I still be pregnant with no symptoms???

Yes absolutely you can be pregnant without symptoms. Many women go months without knowing they're pregnant, some even the entire pregnancy.