Smoking has negative effects on the fetus in any month of pregnancy. However, smoking during the first weeks of gestation increases the risk of miscarriage and fetal malformations, since it is during this time that all embryonic development takes place with the formation of specific tissues and organs.
What are the consequences of smoking in the first month of pregnancy?
By Zaira Salvador B.Sc., M.Sc. (embryologist).
Last Update: 03/23/2022
Bachelor's Degree in Biotechnology from the Technical University of Valencia (UPV). Biotechnology Degree from the National University of Ireland en Galway (NUIG) and embryologist specializing in Assisted Reproduction, with a Master's Degree in Biotechnology of Human Reproduction from the University of Valencia (UV) and the Valencian Infertility Institute (IVI)