How many days after implatation to test?

[TheSmpsns]

I suspect that perhaps I am getting implantation cramping. If someone suspects implantation (via cramps, bleeding or temp), How many days should they wait to test? I know that the hcg will start right away, but how long until it is enough to show on a test?

 

[Butterfly89]

Generally two! The amount doubles (approximately) every 2 days. And the closer to your expected AF, the better. It really depends on your own body.