Clomid vs Letrozole

Alexis

Starting round 4 tomorrow and switching to letrozole. Dr also doubled my dosage. Has anyone had success with letrozole after trying clomid? Clomid seemed to work for my first round in April after ttc naturally for over a year. Got my first ever BFP but no baby ever grew...no luck with round 2 or 3. Dr is giving me 3 rounds on letrozole and then next step will most likely be ivf. Thanks for reading.