Is mild cramping after your period a sign of pregnancy?

yes, both are signs. cramping is from the implantation of the egg in the uterine lining

It's possible; Your symptoms of pregnancy will usually appear anywhere from the first week of your expected period to 1-2 weeks after your first week of expected period. Your first signs of pregnancy...

it could be but may not be the best thing to do is see a doctor

Yes, they can be similar. Sore breasts, nausea etc are some.

if you didn't get your period, it could be