A new study looking into cannabis smoking and fertility has revealed some very surprising results.

Apparently men who smoke marijuana may have a better chance of having a baby than men who just say no.

The study, which was published in the journal Human Reproduction, studied couples undergoing IVF.

What the researchers found were contrasting results in the male and female subjects.

Women who reported smoking marijuana had a higher likelihood of miscarriage than those who didn’t.

However, men who reported smoking marijuana had better chances of having a child, compared with couples whose male partner didn’t.

According to the report authors, from the Harvard T.H. Chan School of Public Health in Boston, the results came as quite a surprise, as it was expected that smoking marijuana would adversely affect conception as a whole.

The findings do, however, support those of a previous study that indicated that men who smoked marijuana had higher sperm counts than those who didn’t.

The researchers are keen to point out that the new findings don’t mean that men should start smoking marijuana to boost their fertility because only a small number actually smoked marijuana around the time of their fertility treatments.

At best, they say, marijuana may not have a harmful effect on men’s fertility.