Weird CM

I woke up this Am and went to go pee (tmi) after I pee'd I looked down to flush and in the water was a a BIG clump of thick white CM just floating....I've never had this before much less after I've used the rest room..is this odd...has anyone experienced this before? Could it be due to the <a href="https://glowing.com/glow-fertility-program">IUI</a> meds or the progesterone?