Alcohol/smoking while ttc

Hi. I am 35 and will be 36 in about 6 weeks. My husband is 41. We like to drink on weekends mostly and I smoke a few cigarettes a day and more while drinking.

I guess my question is how many women here ttc almost a year(were at cycle 11 now) and got pregnant shortly after quitting these 2 things. All our tests have come back good for us both but it just doesn't seem to be happening and I'm wondering if it's because of these 2 factors. Everything I read via internet says to stop 2-3 mo the prior to trying.

Any input or advice is greatly appreciated