Dull cramping

About a day or 2 after my period my boyfriend and I had sex. 2 days after the intercourse I had very dull cramping on my left pelvic region where my ovary would be. I'm still experiencing dull cramps, very bearable and pressure that has move to the middle. Just wondering if this could be signs of implantation, it now has been 9 days. Please leave your input ladies :-)