Grades in embryo IVF transfer

I had IVF transfer done on 10/22, 1 embryo was a 4 cell and the other was an 8 cell grade 2-c. Does anyone know if you can become pregnant with these embryo's. I don't think the 4 cell sounds good and the other 8 cell, the grade does not sound good to me.  Does anyone know anything about this?  Thanks.

[SDScientist]

Each embryologist is going to grade them a little differently so it is kind of subjective.  From reading everyone's IVF failure and success stories, I am not sure the grade is a very good predictor of outcome.  I have had two transfers of the highest grade embryos and two neither worked.  I had a friend transfer two of the lowest grade embryos her clinic would transfer and she got pregnant.  

[sarge1]

I agree with SDScientist-my RE said grade is not as important as cell # .  Seems like an 8 cell is good.  Good luck.