Crystal Lake fertility specialist Dr. Laurence A. Jacobs offers IVF Chicago Treatments; semen analysis, ovulation induction, genetic testing, in-vitro fertilization and more! If you're looking for a Crystal Lake fertility clinic, you'll find the help you need at Fertility Centers of Illinois/Laurence A. Jacobs M.D. Dr. Laurence A. Jacobs is a Mayo Clinic-trained reproductive endocrinologist and senior partner of Fertility Centers of Illinois. Our rate of success is high when it comes to helping people have the families they want.