Yes for us. But in hindsight, it could be because I had polycystic ovaries and some fertility issues that needed to be sorted before I could fall pregnant. So it's possible that I just wasn't falling pregnant, or I do even wonder if I miscarried and never knew it (going by what my known miscarriage was like). But our only known pregnancies were all planned. I remember my OB scoffing at it tho, and saying DH must be a man of steely discipline LOL.

We are relying on it now tho, since I refuse to use the pill and DH isn't planning anything permanent LOL. Not keen on barrier contraception, so I guess we're prepared to take the risk. It does have a fairly low success rate compared to other contraception.