Primerose Oil

This is my first pregnancy after a miscarriage. I have heard whispers about a wonder oil called primrose oil. When i mention it to my doctor they remark that some mom's have less tearing when they take primerose. And from my husbands fitness journey, he had good results with it helping his flexibility and elasticity of his skin and muscles. I am currently 34 weeks and 5 days and just started taking it. Are there any moms on nurture that have used this supplement successfully? Any recommendations for doesages and what not? Id love to here your story.