Ladies, how many of you have experienced missed periods with your rapid weight loss? I finally caved and took a pregnancy test today, which was negative thank goodness, because I was nine days late on my period. I think my husband was going to :puke: I am normally very regular so I knew something wasnt Kosher. I know that the rapid weight loss can cause the missed periods because of hormonal shifts, I was just wondering if it is pretty common side effect and alot of you have had it happen as well.