What are my chances of being pregnant? 10 POINTS?

Okay I had fri. sat. and sunday all days I was ovulating. I know there is only a 20 % chance of getting pregnant every ovulation but this is my 4th month trying. He has been eating oyster's. I layed with my leg's proped for 20 min's. idk it's way too soon to tell I would just like some nice advice. Thanks