Your symptoms suggest either a hormonal deficiency
or a small grade of palcental bleed compatible with ongoing pregnancy
. You are lucky that you have not developed any other complications as you definitely need better attention. The choice of a natural birth or an elective caesarean section
can be decided only after an evaluation by an obstetrician at term. I suggest that you have all the required investigations done and opinion taken regarding the well-being of your baby from an experienced doctor and try to be within reach of a fully equipped hospital. Good luck.