🛑⛔️🛑 do you ovulate during your lh surge or after 🛑

Stupid question i don’t get how ovulation works technically when it comes to timing. I took an opk this morning it was progressing but still negative . Took one about 20 mins ago and it’s positive. I’m hoping my bf wants to bd as soon as he gets home from work. But will ovulation start tomorrow or has it started now because of my surge ? I’m confused 🤷🏽‍♀️ &

How long do I have to bd ? I won’t bd until like 1 am