A short video for AQA Core Science (GCSE Core Science) outlining the use of hormones for preventing pregnancy and encouraging pregnancy.
Source: www.my-gcsescience.com
Source: www.bbc.co.uk/schools/gcsebitesize
Source: www.samlearning.com
Optional video about the reproductive system. This is interesting, and good for background info, but not really related to the topic here.
Source: Crash Course science