You calculate your
vesatot based on the start of your flow (
chodesh,
haflagah, and
onah beinonit).
In addition — a
veset she’eino kavua is normally uprooted after one cycle, assuming it passes without bleeding. However, since you found blood on a
bedikah on your
veset hachodesh from Tishrei, that
veset was not uprooted and you continue to observe it next month.
This means you will observe a
veset on 14 Kislev (your
yom hachodesh from Tishrei). You will also observe
vesatot on 16 Kislev (both
chodesh and
onah beinonit from your most recent period) and on 19 Kislev (
haflagah).
Note that this type of halachic nuance is not generally reflected in online
veset apps.
Please feel free to get back to us with any further questions.
