Females usually conceive after just one breeding, but occasionally do have trouble conceiving. Some women intentionally turn to fertility drugs in order to conceive twins. It may not be safe for use by pregnant women or those trying to conceive. Pseudo-pregnancy frequently occurs in canids that have ovulated but failed to conceive. Certain factors appear to increase the likelihood that a woman will naturally conceive multiples. If she were lucky, she might conceive his offspring and be allowed to keep it. Incubi are sometimes said to be able to conceive children. The female can conceive again two weeks to four months after the birth. Miraculously, Kevin and Carol successfully conceive and she gives birth to their baby. It never was possible to conceive that. She was unable to conceive again with Grdina, even with in vitro fertilization. However, they struggle to conceive a baby. Partners may become more anxious to conceive, increasing sexual dysfunction. The couple also decides to start trying to conceive a baby together. He becomes Addison's doctor and helps her attempt to conceive using IVF.