does lack of calcium cause nails to chip?

Hi Ivana,

The answer is yes. The morning after pills are known to cause changes to your normal periods for at least 2 cycles or months. This is very common. If you took a pregnancy test and it was negative, I am pretty certain that the delay in your period would be consistent with the use of the pill. I hope this helps. If it continues to be late, contact your physician although for right now - this is common.

Good luck,

Missie