Peak day?!

Okay, so my peak day of ovulation was on Saturday September 13th, me and my fiancé made love on the 11th (not relevant? Don't know but just in case). 
​Does it count as having intercourse in the peak time if it was in the early hours of the morning? (Sunday 14th September if you go by the time on the clock, it was about 2:40AM). 
​We would of had sex earlier that day but we both had work until late, and I also work two jobs so I was also working in the morning :/ I'm really hope it would count, as we're desperate for a baby now. 
​I hope this question made sense, thank you in advance!