Has anyone ever tricked hubby into another pregnancy?

Ok so I have 2 kids and both dh and I want another one. But hubby wants to wait until 2018. I don't. I want a baby like NOW. Of course its wrong to lie to your hasband. My sitation is this. I have pcos so I don't get pregnant unless I take Clomid. So we never use protection. Technically I could get pregnant and he'd be happy he would never know if or not about the Clomid...really tempted to try it but I guess I wont :/ just want to hear stories of other ladies who've done this, opinions etc all welcome :)