%! Author = alex
%! Date = 3/7/25

\section{Background}\label{sec:background}


\subsection{Menstrual Cycle}\label{subsec:menstrual_cycle}
The ovulation is defined as the rupture of the ovarian follicle and the release of an egg cell into the fallopian tube.
There, the egg cell can be fertilized by sperm cells and develop into an embryo\cite{holesh_physiology_2025}.
This is accompanied by changes in the fluxing gonadotropin-releasing hormone (GnRH), luteinizing hormone (LH),
and follicle-stimulating hormone (FSH) levels in the blood.
Additionally, the basal body temperature (BBT) rises by about 0.5 degrees Celsius after ovulation.

% explain different physiological signs usable for prediction, advantages and disadvantages