Is taking progesterone suppositories, although the levels are normal harmful in anyway to my pregnancy?

No it is actually good for the uterine lining to have extra progesterone in your system and uterus in an early pregnancy. With IVF, Dr.s have their patients use cream to insert into their uterus to help thicken the uterus so that the baby has a higher chance of implanting and a successful rate of pregnancy and a live birth. IVF patients also inject progesterone oil by needled and they use estrogen patches. So suppositories are good HOWEVER, speak to your Dr prior to using those. You never want to use those without a Dr.s consent or guidance.