http://www.medications.com/effect/view/30995 I switched from Yaz to Loestrin 2 weeks ago, On day 11 I experienced spotting, now its full on breakthrough bleeding like a normal period. It is now day 15/ At night it tends to get light and then mid day its very heavy w/ lots of cramping. In the morning I Sun, 01 Jun 2008 15:16:52 -0400 http://www.medications.com/effect/view/30995?item=8799 I switched from yasmin to loestrin about 7 months ago. Yasmin/Yaz is the worst pill you can take, by far. Your body is more than likely extremely confused right now and it definitely needs your assistance. It is probably depleted of so many nutrients and v http://www.medications.com/effect/view/30995?item=8799