Short Cycles?!

Jenna
My last Cycle started on March 20th. I'm not sure when I ovulate I just started tracking. All I know is for the year now I have had 23-24 day long cycles and that's been my norm. My period was due April 13th and I still have nothing.
My question is can implantation happen the day of your expected period when you have a short cycle.
Because the day AF was due I had slight pulling type cramping it was no where close to the normal first day period cramps. 
(Normally my worst cramps and heavy day)
Since that maybe two hour time frame I haven't had nothing since besides I've been feeling really sick when I let myself get hungry.