Stress and conceiving

Cristan
Okay i have a question ive been trying to concive for 18 months now with no success im about to start my 4th round of clomid 250 mg and if it doesn't work my doctor said it gets expensive to do anything else i have a really bad problem with stress ttc is all i think about to tge point im losing sleep over it and u have a feeling that might be why im having a hard time getting pregnant now if i smoke some pot could that help would it be safe if im trying to get pregnate i have no idea but im desperate right now