Yes. Studies have shown that women who smoke have reduced fecundability (lower probability of pregnancy). Since smoking affects both your fertility and is dangerous to the fetus when you are pregnant, now is a good time to quit. Quitting on your own can be difficult and stressful, particularly if the stress of trying to conceive is adding additional pressure. Consider talking to your doctor or seeking help if you are finding it difficult to quit smoking on your own.
Male fertility is also affected by cigarette smoking. Men who smoke who are
trying to conceive should also consider quitting to increase their fertility.