Ovulation and AF coming

AF is due in 3 days and I have a very consistent 29-30 day cycle . I just took an ovulation test out of curiosity ..and it was a definite positive ! Usually only use OPK's right after cycle untill the end of fertile window on app. Should we get busy tonight or is it normal to have positive OPK's this close to AF? I took 2 pregnancy tests , last one being 2 days ago and those were both negative..