Hi,
Yes you can. Implantation cramping is very common and usually feels like period cramping. Implantation bleeding (IB) occurs 8-12 days after unprotected sex and not every woman experiences IB....
I've had three children (waiting to test to see if we're having four!) and have had implantation cramps with each pregnancy. For me they feel just like AF cramps, although a little more intense, and...