本研究是以質性研究觀點探討接受人工生殖技術的不孕症婦女，於妊娠滿四週初次得知懷孕至妊娠十二週止之監測及維護行為。採田野研究法收集資料，再以內容分析法就所收集的質性研究資料加以分類、歸類、分析及數碼化。結果得知:監測及維護行為共計2931個行為單元，分別佔85.2%及14.8%。監測行為又分為覺察及求證行為，維護行為又分為迴避、趨向及合理化三種行為。監測及維護行為所指稱的對象及內容包括懷孕經驗(67.8% )、生長發育(21.1%)、胎兒－醫療處置( 6.1% )、自身－醫療處置(5.0% )。在懷孕經驗方面她們會仔細地監測其身體的改變，以再次確認自己是否真正懷孕，並維護自身的健康安全:生長發育方面則會特別關注是否能孕育健康、正常的胎兒;自身－醫療處置會特別關心是否做好妥善安全的生產安排:至於胎兒－醫療處置，減胎是否會減到好的、男的胎兒或造成流掉的危險性，是她們最關注。

The purpose of this qualitative study was to explore the monitoring and maintaining behaviors in the first trimester of pregnancy in women who received assisted reproduction and became pregnant for the first time. Clinical field method was employed in this study. Data was collected for two months from the fourth week of the pregnancy to the twelfth week. The recorded verbal behaviors were systemically analysed and cate-gorized using content analysis approach. The findings revealed that there was a total of 2,931 behavior units in both monitoring and maintaining behaviors derived from the data. Monitoring behaviors occupied 85.2% of the total behavior units, and were divided into sensing behaviors and proving behaviors. Maintaining behavior accounted for 14.8% of the total behavior units, and included avoiding, approaching and rationalization behaviors. Monitoring and maintaining behaviors which were related to pregnancy experience accounted for 67.8%, while fetal grow accounted for 21.1%,fetus's medical management 6.1% and mother's medical management 5%. With respect to pregnancy experience, after these women were told that they were pregnant, they turned to involvement in monitoring their physical changes to be sure of their pregnancy and safe guarding their health. In respect to fetal growth, these women turned to paying special attention to their fetuses and the condition of their fetuses. In respect to the fetal management and multiple pregnancy concern, these women expressed their worries of the risk of losing their only selected fetus and that the healthy male fetus would be mistakenly removed during the process of fetus reduction. Regarding mother's medical management, both women with single pregnancy and multiple pregnancy expressed their strong concerns that delivery should be carefully arranged.