lh surge help

So...last night i tested a $1 store ovulation test that was definitely positive. I tested again this morning with the $1 one that was positive as well as my clear blue advanced which had a smiley face meaning peak fertility. My husband & I BD last night. curious my fertile window let when to BD again? today & tonight? tonight & tomorrow morning? just tonight?? tonight and tomorrow night? we have been at this for 15 months just trying to get it right. thanks in advance!

last night 1/30

this morning 1/31