can be attributed to excess hormone as well in the absence of pregnancy
. This is usually seen when there is some hormonal
imbalance. You should consult a specialist for proper evaluation, get a pregnancy test done and also a trans-vaginal sonogram. A complete hormonal profile is essential to look into the cause of decreased libido as well as the symptoms associated with each cycle. Though everything seems fine, subtle things can influence sexual life a lot and need to be handled to avoid major complications. Hope this helps.