The thyroid gland produces two hormones, thyroxine (T4) and triiodothyronine (T3), which influence almost every cell in the body. These hormones are regulated by the thyroid-stimulating hormone (TSH) produced by the pituitary gland.
When thyroid hormone levels are unbalanced, the entire reproductive system feels the impact:
• Menstrual cycles become irregular, either delayed, absent, or too frequent.
• Ovulation may not occur regularly, reducing the chance of conception.
• Progesterone and estrogen balance is disturbed, which is vital for implantation of the embryo.
• Risk of miscarriage increases, especially in untreated thyroid disorders.
This is why women with suspected thyroid issues are often advised to undergo blood tests before planning pregnancy.