Background: The client of family planning program in our PHC less than expected, the program represent a chance to family size control, development, and good planning for future. Aim: We aimed to assess the prevalence of family planning usage, & to evaluate client knowledge about these methods. & to determine the most common family planning used. Methodology:  Cross sectional study was conducted in Bab Al Moatham PHC catchment area, 3-7/ 2017. A total of 141 married women aged (15-49 yrs.) give a structured questionnaire developed mainly by the researchers depending on family planning WHO guideline, ten expert's opinions taken in consideration, also pilot study of 14 married women done. Data analysis was done by using SPSS ver. 23. Frequency, percentage, Chi-Square test were used. P < 0.05 considers significance. Answer scoring was done for knowledge. Results: Sixty three of women (44.7%) aged 29-39yrs, with 56% complete primary school, 92.2 % housewife, 34% married 2000-05, 68.1% with good obstetric history, 87% of them used family planning methods, and 58% using it now, most method used is CCP 66.7%, good knowledge in Withdrawal method 65.2%, CCP 55.3%, and poor/no knowledge in vasectomy.  Significant association between educational level, working, year of marriage and previous use of family planning, while only working state has significant with resent use of family planning. Conclusion: Decrease in using of family planning methods, and most method used is CCP, then withdrawal method with good knowledge in both and poor/no knowledge in vasectomy