The weakness due to diarrhea
may upset menstrual cycle.Still blood HCG
will help the doubtful condition.
Please get your stools checked to find basic cause of your diarrhea & get it solved with your doctor's advice.
The white discharge may be due to weakness/infection. This too needs treated after investigations. Abortion
in first three months can be avoided by starting hormonal
support to baby earliest,Late abortions need to be investigated & treated before you conceive.