Cycle always 30-32 days but last month 38 days and this month today makes 39 with no sign of AF

It Is Well With My Soul😇🙏 • Married to my highschool sweetheart TTC baby #1. thanking God for my blessings!
Ok so I have always been pretty steady on 30-32 day cycle. Well last month I went 38 days with only 4 days of AF. Now this month I'm on cycle day 39 today and still no AF....what could be going on ? I'm going to go get an HCG test just incase. Hpt don't work for me ....yes I bought some anyway and get the same results I always do....clear blue says postive and the red dye walmart .88 ones say negative. So reason my pee just doest work for hpt because I have a reconstructed bladder.