Thank you for your query.
On cycle day 16, the follicle size is not good enough.
Even if we consider the longest length of your cycle, that is 35 days, then we can wait till a further 4 - 5 more days to see if the follicle reaches a mature size of 20 mm atleast.
If you do not ovulate, you would need fertility medications from your next cycle.
Also, you need to have your PCOD under control, with weight reduction, lifestyle modification and Metformin
to be added if your doctor agrees.
Your tubal patency should be checked, as well as semen analysis
of your husband.
Your autoimmune disease
is an obvious factor, but other reasons for stillbirth should be evaluated, such as Rh incompatibility, diabetes, hypertension
, cord problems , chromosomal disorders etc.