short luteal

Alyssa • 29, wife, mama to our baby girl🎀, & baby boy💙
Was posted before but i updated so im re-posting .. Hi everyone - so i have a few questions;
1) i believe i ovulated today and my period is due 12/27 - is that enough time for the egg to get fertilized, implanted, and let my body know before my period shows up? 
2) i have an apt with my gyno on 12/22 - if i conceived this week, could they tell next week?
3) if i BD sun, mon, wed, thur of this week and ovulated today - which is friday (but did not BD) do i still have a good chance of getting pregnant?
Thankyou to everyone who answers❤️