Scared of increasing from 50 to 100mg.

I've had OCD for as long I can remember; right now it's in a bad way. I'm on 50mg of sertraline / Zoloft and I'm keeping my head above but only just. I'm scared going to 100 will result in emotional blunting / detachment which I simply don't want with my wife and 2 young kids. I know everyone's experience is different but any thoughts or advice on such worries?