so i had my ET on 23 july after a fresh IVF and got my BFN on august 2, AF came on august 4 and now after 13 days of my BFN, im thinking of doing a natural IUI (im not used to take a break from IF

my question is: can i do an IUI right after an IVF cycle or should i wait more time ?
could this egg be empty or bad coz the previous cycle i did stim injections with all the ivf meds. etc... ??
thanks.