Clomid again?

Hi i have been trying to find some answer's. I got prescribed clomid in 2018 and feel pregnant with my son on the 5th round. I have an appointment on the 13th to see a fertility specialist as i haven't had any luck falling pregnant with second child. My question is will they be able to prescribe me clomid again or maybe try letorzole as i don't ovulate on my own and since having my so i have been diagnosed with pcos and underactive thyroid. Thanks