My menstrual cycle started on 14 August.. and my husband & I did unprotected sex on 28 , 29, 30 Aug, and on 1 sep.. Almost every alternative day. Every time he penetrated my vagina.. however after 2-3 minutes all comes out... now today my stomach has been cramping.. n I feel tired all the most... Can I be pregnant??

Pregnancy is always possible when you have sex. Sadly we can't tell you if you are or aren't, and it would be way too early for an accurate pregnancy test.

Wait until your period is due. If you miss your period wait a week then try a pregnancy test using first morning urine. If that test is negative wait until your next period is due, and if that one is also missed then test again or see your doctor for a more accurate blood test.