Could I be pregnant 3 weeks and 2 days after D&C??

Okay so I had a d&c; March 26th and my period came on a week after the surgery on April 3rd. Ive been feeling so sick to my stomach we had sex 5 days after D&C.; Ive been hungry alot lately boobs are heavier and fuller. nipples are huge and darker. ive been having some cramping and lower back pain.