Implantation Cramping?

Deidra
My last period was 9/12-9/15 which only occurred because I was given Provera. On days 3-7 of my cycle I took Femara. Went back to dr this past Friday (9/25) and he said I should ovulate at some point over the weekend. Hubby & I BD all weekend. Today I have been having some nausea and cramps. Is this a possible sign of implantation?