Clomid 1st pcos

Hi ladies i had my last period 27th-31st July, i took clomid days 2-6 i have pcos so a long cycle is normal for me, i am currently on cd 33 and no sign of AF just wondering does clomid normally shorten cycle? i don't know if and when i should test as my longest cycle this year has been 42days, appreciate any advice u's can give? According to Glow my period is 2days late and according to my other apps 1 day or due today