can over scretion of thyroid stimulating hormon delay the pregency in human female?

Um, isn't thyroid stimulating hormone (TSH) what stimulates the thyroid gland to produce thyroxine and calcitonin... which have nothing to do with pregnancy?

Maybe you're thinking of luteinizing hormone (LH) or follicle-stimulating hormone (FSH). Both of these are related to TSH and stimulate the ovaries and testes in some way or another.