Ovulating | how long for?

Hi girls

Sorry I’m a bit new to this.

Did an opk yesterday (indicated as high in Premom but not peak) yesterday evening and this morning, I did a clear blue ovulation test which is a solid smiley!

However pressures around conception mean my husband is not about sex at 5:30am 😂 how long do I have before that egg disappears? Assuming it’s already dropped so it is viable for how long?

I just want to give us the best chance possible. The timing of things sucks and he’s in the office today 🥲🥲🥲

UPDATE: I ended up having sex this morning so 🤞🏽