Hi,
According to your history, the possibilities are that sometimes minor fluctuations can be seen in the length of menstrual cycle, in duration and amount of menstrual flow. Reproductive
hormonal imbalance due to many causes like stress and strain, changes in diet, exercise, food, etc. can lead to this. Usually menstrual cycle with a length of 21 to 35 days can be considered as normal and menstrual flow with 2 to 7 days can be considered as normal. So, as your urine
pregnancy test is also negative, you may not need any active treatment for this. And you can wait and watch next few menstrual cycles.
If you are still having doubt regarding pregnancy, to get a more accurate result, please go for a
blood test for pregnancy once, to rule out the possibility. The possible causes of
vomiting containing mucus and blood are:
-
Gastritis leading to
nausea and repeated
retching can lead to damaged esophageal mucosa and bleeding.
-Ulcers of gastrointestinal tract.
-Mouth injuries, nasal bleed etc.
If these symptoms persist, better to consult your doctor once and get examined. By clinical examination only, the exact cause of the problem can be known and treatment can be taken accordingly.
Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Sree Gouri S. R., OBGYN