It depends on the kind of sway you want. Some people cannot let go of Shettles timing even though it's been completely debunked, and they have 3 attempts (but O-1 and O Day - so you have 2 attempts one of those days). There has never been a proven pregnancy on O+1. Now, we have people have sex that day because their ovulation may be delayed, NOT because O+1 is a desirable day to have sex for a boy. The egg is either fertilized or dead by that point if you ovulate on the day you think you did.
Those of us who have either given up on timing or don't care about it because it's been so thoroughly debunked have sex outside of that narrow range because there is evidence that indicates regular unprotected sex makes you more fertile, and theories that say it may make you more blue friendly. It is also in line with what many of us myself included did when we got our boys. Most of us have unprotected sex all the time when not trying, just use protection in the fertile window, and then when we start trying, we have sex thru the fertile window. Lots of exposure to hormones in semen and we got our boys that way.
It's all about which option feels right to you.