Yes absolutely you can be pregnant without symptoms. Many women go months without knowing they're pregnant, some even the entire pregnancy.
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???
Having cramping but no period around the time someone's period WOULD have come had they not gotten pregnant IS A SYMPTOM of pregnancy. I am not saying you are pregnant . I am saying there's a good chance you may be.
Take a pregnancy test then see a doctor. You should have had your period twice by now according to the calculations I did by the question you gave us. Don't waste another day doing this. Good luck .