help

When I'm playing as black I tend to keep reaching this postion what should black do?

yeah, you have the move order wrong for a benoni.

2 ... c5

4. .... Be7 is wrong.  2. ...c5 is not necessary for the Benoni, it can be played later.  If I play the Benoni, like many, I wait until White has played 3. Nf3 sidestepping my usual Nimzo, then 3....c5.  3. e3 in this case does not preclude the Benoni but I usually like to wait for the f pawn to be blocked by White's knight.  If you want to keep in Benoni lines play 4.... g6.  The other option is angling towards a Tarrasch QGD with 4.... d5. 

Other options are 4... b6 or 4... cxd4 both being good, within the Benoni complex but of a somewhat different character.

I really dont like capturing on d4 because white then controls alot of squares and my knights have no where to go

I would suggest you pull several Benoni games and go over them.  Benonis play differently than "classical" QP games like the Tarrasch and QGD.  I would really suggest that you change Be7 to g6 and follow those lines if you want to stick with the Benoni here.

Thanks carl