I intentionally "skipped" my period by skipping my white placebo pills and beginning a new pack of hormone pills. However I'm experiencing period-like symptoms such as slight breast tenderness, and cramping in my lower abdomen (like period cramps). These have been going on for about 3 days. I have had sex but have been safe using birth control and we also use condoms (aside from once about 3 weeks ago). Is it normal to get some period like symptoms while intentionally skipping your period?