Pregnant women swallowing sperm

14 Claims About Semen's Health Benefits, Examined. What is a sperm allergy and how do I know whether I have one? - BabyCentre UK. June 4. However, some researchers say that if you have a female reproductive system, your body releases less prolactin , making you less sleepy after you come. Many articles claim that if you swallow semen, it can result in lower blood pressure.