Howbeit many of them which heard the word believed; and the number of the men was about five thousand.
Note 3 at Ac 4:4: It would be inconceivable to believe that only men repented and were converted in this instance. Therefore, it is most probable that many women and children believed on Jesus also. This would possibly double the total number of converts on this day to 10,000 or more. Including those who were born again on the Day of Pentecost (Ac 2:41), there were now over 13,000 believers in the church.