The symptoms described – bad effects of abortions and miscarriages, soreness and heaviness in the pelvis, a conscious awareness of the womb with a feeling of movement on her own movement, and marked tenderness – strongly point towards Helonias Dioica. This remedy is well-known in homeopathic materia medica for its affinity to the uterus and conditions arising after abortions or miscarriages, characterized by uterine weakness, pelvic congestion, and a peculiar awareness of the womb.
Let's briefly consider the other options:
\begin{itemize}
\item Murex: While also having uterine affections, its symptom picture includes a sensation as if the uterus were clutched by a hand and often involves sexual excitement.
\item Lyssin (Hydrophobinum): Primarily known for symptoms related to rabies and a fear of water, with intense nervous excitability.
\item Lappa (Arctium Lappa): More commonly used for skin affections and glandular swellings.
\end{itemize}
Therefore, based on the specific constellation of symptoms, especially the uterine consciousness and the history of abortion/miscarriage, Helonias Dioica is the most indicated remedy.