... or anything. I hadn't had my period yet that month and it ended up coming one day late but that's normal for me. My period ended about 8 days ago. 2 days ago I began feeling nauseous around 11 pm but thought it was because I hadn't eaten anything all day. Yesterday I still felt nauseous but still thought it was because I hadn't eaten anything and was slightly stressed. I now feel better and can eat, but with this experience, does it mean that plan b worked? Like I got my period and everything on time so I'm just trying to make sure that the nausea was from stress and not eating rather than being pregnant