Can I hide it??

I'm hoping to hide my pregnancy from work until 23 weeks which is when I will have officially announced to all my friends (my fiancé and I moved out of town but are going back to visit at that time).  I'm currently at 15 weeks and am just barely beginning to show.  Do you think I will be able to conceal the pregnancy for another 8 weeks?? I'd really like to see some pictures of your bumps around 23 weeks so I know what I'm in for! Also please let me know when your bump got to the point where it was difficult to hide, especially from mamas who started out quite small like me. Thank you sooo much!