I have been prescribed Letrozole as I had horrible side effects on Clomid. I took the full 5 days of Letrozole with the last tablet on Friday 14th. Today I feel swollen and my ovaries literally feel like they are throbbing. I did an ovulation test today and got a faint line. It feels far too early to be ovulation (on Clomid I had to have ovulation. induced on day 19). Im not due to go in for my scan until Wednesday 19th. Has anyone had a smilier feeling one Letrozole?