LH surge at night?

I usually get my positive opk CD 17 (tomorrow) I tested this evening just to be safe and it’s so close!
My question is, could I have my surge over night? Would this mean bding tomorrow night would be too late?!

Attachment 38465

My opk this evening

It's possible to surge overnight but usually LH peaks in afternoon/evening. An attempt tomorrow wouldn't be too late since you probably won't ovulate for another 12-36 hours after your LH surges. Good luck!

I really hope so i have exactly the same question:)

Thanks, ksmom!

I’m being paranoid and thinking maybe I’m an overnight surger so I’m missing my window and that’s why I haven’t concieved so far!

LH reaches a peak in the wee hours of the morning (just before dawn) so usually this comes out in your urine mid-day which is why we test after lunch. It's possible but not very likely at all.