Purpose: To identify the prevalence of unplanned pregnancy and the most common associated factors that might increase the incidence along with psychological effect. Material and methods: Self-administrated survey was conducted among pregnant women attending obstetric clinics during January, February and March 2017 at King Khalid university hospitals. Of whom 358 answered the survey. SPSS version 22 was used for completed and partial completed survey entry and analysis. Result: Prevalence of unplanned pregnancy among pregnant women attending the clinics was (12.3%) and majority (53.1%) found to be planned. We found that there were specific significant factors (age, gravidity and parity) which could play a role in determining the pregnancy was either planned or unplanned. Unplanned pregnancy associated with minimal psychological effect or distress when compared to planned pregnancy found when applied a screening test. Conclusion: Unplanned pregnancy has been associated with poor outcomes to the mother and baby along with psychological effect. Increasing the level of awareness and identifying the role of contraception in preventing unplanned pregnancy need to be conducted.