If you smoke weed while taking clomid will it decrease your chances I am 38 years old with one child 20 years ago. No complications and ultrasound now looks good cycle is pretty regular except last month when I started the clomid. My cycle went to 32 days instead of 28 or or 24 test was negative but had all pregnant symptoms. Cycle finally came. I do smoke weed about twice a day and just quit cigarettes about two weeks ago. I eat very healthy and take prenatals. My husband has 5 kids and he does not smoke weed.