My partner says soft drugs are OK—should we stop now that we’re planning a baby

By soft drugs, you may be referring to nicotine or marijuana. Tobacco smoke and marijuana smoke are highly likely to be harmful to fetal development and should be avoided by pregnant women and any woman who might become pregnant, or is planning to become pregnant, in the near future. A chemical present in marijuana known as THC is thought to reduce luteinizing hormone (LH). This hormone triggers ovulation in women and is involved in sperm production in men. So, as well as being potentially harmful to a fetus, smoking marijuana can result in a short-term decrease in reproductive ability