We had unprotected sex a few times before my first period post ectopic (June 2013) then tried every month before falling pregnant in November 2013. I'm now 28 weeks. I know it's recommended to wait...at least 2 periods I think. Everyone is different and feels ready at different times. Why not wait for your period and then see how you feel?
Good luck. I know how heartbreaking it feels to go through an ectopic pregnancy. x