Orsythia causing YI

Okay so I recently started taking a BC called Orsythia about 3 weeks ago, and now I have a YI. Anyone else have this problem?
On the other hand I had sex before I started the pill, but he pulled out way before he finished
And I also had sex after I started the pill and he did the same thing. I'm not really concerned about being pregnant and I haven't gotten to the blue pills for the last week of my BC meds.