I was on Cerazette and then ended up taking EllaOne on 8th September as I didn't realize I had run out if Cerazette. I didn't have any side effects until around a week later est 15th. They started with a lower stomach ache that felt a little like cramps - they weren't unbearable so I brushed it off. The last few days I have started to feel a little nauseous, mainly in the mornings. Today I woke up and have felt quite dizzy. Is this normal and is it normal for the side effects to start around a week later? Has anyone else experienced this?