HI. Thanks for the query through HCM virtual clinic. I have read your query carefully & understand your concern. IVF is a complicated process & it s success depends on balancing various factors involved. So success of IVF may need multiple attempts. To be positive helps the process , as your psychology affects your hormonal pattern. It s good that you are taking eltroxin 100 tablet for getting your thyroid hormone normal. Progesteron is the hormone which helps conception & supports the pregnancy to survive. Your doctor has rightly advised for Cyclogest ( a progesterone preparation ) to combat the low levels. - Folic acid aids in forming normal fetus. So with the improved medication & positive mentality you do have good chance of pregnancy. thanks.