Hi, I guess your concern is about does primerose oil and angus castus medicine help to get pregnant while having pituitary tumor. Firstly I want to tell you that there are many types of tumor occurs in pituitary, among this prolactinoma is more common (tumor which secreting prolactin hormone) poses difficulty in getting pregnant because it causes irregular menses. But its treatable with medication if is small in size. Secondly I would like to discuss about your medication. Primrose oil usually given for the mastitis ( heaviness or pain in breast). Its having no role in pituitary tumor. I don t have any idea about the another medicine u have ( angus castus). No need to take tension. It is treatable but require surgery. In both of the cases chances of getting pregnant is high. If you are still worried then, revisit to your treating doctor, discuss about it. If you are not satisfied with them then visit to nearby infertility specialist. he/she can help you. I pray to the god that you will be getting pregnant as early as possible and blessed with the cute baby. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Sudha Rani Panagar