Hello,
Polycycystic ovarian syndrome or
PCOS is a symptom complex with an unknown cause and mostly genetic in origin. It is seen in 5-10% of women in reproductive age and is the leading endocrine problem of this age. Most often it leads to
primary infertility, but since you have already had 2 successful pregnancies, it goes in favor that your ovulation is reasonably good. HPT can give false results as they are not very sensitive. You should take serum beta-
hCG levels. Your PCOS could lead to absence of periods followed by spotting irregularly, but since you are experiencing symptoms of which you are well acquainted with, I advice you to see your doctor for a diagnosis and further management. Good luck.