Diagnosed with Underactive Thyroid when pregnant with DS2 (now 20 mths). I have been TTC since Christmas but no luck. Before pregnant with DS2 my periods were 28 day cycle with little deviation. But since last July (2011) my periods have been up the left - 25-28 day cycle until last one which was 32 days long (was convinced I was preggers 
).
Has anyone else had this problem? Or am I starting early Menopause (only 39 
)?