Yep worked for me

We were trying for a boy - we BD'd once, on O day. Did not do it at all before O to minimise the chances of any girly sperm still hanging around when the egg was released, and we got our boy.

Although we weren't trying to get pregnant with DD, she was conceived how Shettle's says to favour a girl - we did the deed about two days before O.

This method isn't about guaranteeing one sex or the other, it's only about swaying the odds more in favour of getting the sex you're trying for. It's certainly not foolproof and we would have been elated with another girl in any case, we just thought it wouldn't hurt to try.

Good luck