If you consistently (i.e., for the past three cycles) find that you begin bleeding within two days of your temperature drop, then you should treat it as a
veset haguf, a
veset based on physical symptoms. You would refrain from relations during those two days and perform a
bedikah at some point during this extended
onah. You would not observe the
yom hachodesh,
haflagah, or
onah beinonit.
If it is not consistent, (i.e., sometimes you do bleed within two days, sometimes you don’t), then this symptom is of no halachic significance. Nevertheless, you should use common sense and abstain, or at the very least check for bleeding (by wiping externally with a
tissue not immediately after urinating) before intimacy.
Please feel free to get back to us with any further questions.
