Bayer Schering Pharma, the makers of Yaz, has launched a birth control pill in the United Kingdom that is bioidentical to female hormones. It is synthesized from plants.
Fascinating.
Yes, it’s 3 a.m. I had way too much coffee when I was studying. I will be trying to sleep soon, I promise.
ETA: I wonder if they will have to retract any of the advertising for this birth control pill. I don’t think they are allowed to advertise prescriptions directly to the consumer in the UK.

Good luck with the studying. I sympathise.
Extreme lack of sleep is also a “natural birth control”.