3rd round 50mg clomid

This is my 3rd round at still 50 mg , i am kind of losing hope my doctor doesnt want to up my dose he said maybe if i dont get pregnant on this cycle he might up it to 100 mg or just send me to endo i sort of feel that its too soon ! What can i do to increase cervi mucus as well because clomid dries me up bad ? Please any info