We already know how crucial it is to consume the proper foods during pregnancy [1] to show your bun in the oven some lovin', but our eyes have just been opened to quite the . . . er, surprising way to get nutrition: swallowing sperm. There are many hypotheses floating around (pun semi intended) that show how it certainly won't hurt and could actually help you sustain a healthy gestation, and we're beyond intrigued.
Back in 2011, Gad Saad, Ph.D. breached the subject for Psychology Today [2], explaining how semen can help women overcome preeclampsia [3], a pregnancy-related condition that causes high blood pressure and an increase in the amount of proteins in their urine. He went on to explain how a woman's risk for developing preeclampsia is affected by her exposure to her partner's genetic cells. So it's kind of like a flu shot in the sense that exposing oneself to the cause of the strange immunological reaction can potentially help build up a tolerance.
Although more complicated forms of cell transfer are an option (such as blood transfusions), many see swallowing sperm via some good ol' fashioned oral as a more convenient solution. (Don't worry — the Mayo Clinic says giving and receiving oral sex is A-OK during pregnancy [5].) This interesting hypothesis is just that: a hypothesis. So, as always, we suggest consulting your doctor for any pregnancy-health-related questions like these, but it's definitely something to keep in mind if you're looking to take part in some adult fun during gestation.