Attempts close to ovulation don't effect a sway. It's how many you had in your fertile window that may effect a sway. For instance, having an attempt O-1 or on O day can still sway girl provided that was your only attempt in your fertile window. My attempt was the day before O, O-1, and I should find out what we are having next week.
Having an attempt on O day or close to it doesn't sway boy- that is the old school way of thought.
FX for you!!!