How long before my LH surge

Vonny

I've been out of my fertile days for 2 days now. So this morning I woke up and had thick eggwhite cm and took a opk (@10) just to make sure and baby dance anyways just to be safe it was the first negative

I get off work and just for the heck of it to test again (@4:50) and I got the second line. So how long before I get my LH surge?I have never gotten one that dark and honestly I'm crying as if I found out I'm pregnant sorry I can be dramatic