Just got a BFP after I noticed my Opks were getting dark again days before AF was due

Andrea • Mother to twin girls age 10, two boys ages 7 and 4 and two baby girls 3yrs & one 16 months ❤️
I posted yesterday about my opks getting dark again days before af was due. I never tried taking an hpt I figured I would wait it out. Well today my opk was positive so I took an HPT 88 cents from walmart and behold its POSITIVE! AF due today.