Cycle length is usually 33 days however on CD 17 (which was yesterdsy) I started passing dark blood with slight blood clots, and today it has been a little heavier and more reddish today and went through to my underwear which required me to wear a pad. Has anyone had this before or had any advice? It is super light now so very strange, yesterday didn't seem like period blood at all but today was a bit more convincing until it started becoming really light again.
Thanks for any advice in advance