Massallah pertaining to istihazah and salaah

Assalamualaikum, My question is that am i allowed to read namaz and quran if
when i usually start my haiz it turns out to be istihadha.and because of alot of qadha later if i wait so will i be sinning if i pray salaat? or would i have to wait for 10 days?
jazakallah