Patient Testimonial
I began my own egg-freezing journey as an OB/GYN resident. Looking back 10 years later, now 38 years old, engaged, and ready to start my own family, I’m relieved to have frozen my eggs. At the same time, I feel obligated to give back and address the toll that surgical training has on women.

– Valerie Libby, M.D., M.P.H. | SGF Atlanta | Program Lead |

SGF in Alpharetta is fantastic. The office is beautiful and brand new. The office and clinical staff are friendly, they make you feel comfortable and they are very accommodating. I have never had to wait long for my appointment.

I have only wonderful things to say about Dr. Gay and his staff at the Alpharetta location. Knowledgeable, compassionate, and professional… I could not have asked for better care.

Dr. Swelstad has somehow perfected the difficult balance of being thoroughly educated and up to date in his field and patient and kind enough to make you feel important to him.

Dr. Libby was just amazing. We had a long journey and she was right there with us in the trenches. She was our third fertility doctor. She thought outside the box, was willing to try new things, was open to our questions, and used her team to help us.

I went through IVF with Dr. Humm. I felt heard, comforted, and comfortable the whole way. The support staff were beyond fantastic and turned what would have been a scary experience, into something that my husband and I never felt like we were navigating alone.


Erika Rubant, MSN, RN, WHNP, earned her Bachelor of Science in Nursing at Baylor University in Dallas, Texas, followed by a Master of Science in Nursing, Women’s Health Nurse Practitioner, from Vanderbilt University in Nashville, Tennessee.  

Passionate about women’s health care, Erika started her nursing career in labor and delivery and later worked at an OB/GYN office. From there, she focused her career on reproductive medicine.  

Since joining SGF in 2002, Erika’s responsibilities include seeing new patients for various fertility treatments, performing monitoring and baseline ultrasounds for fertility preservation and treatments, and completing hysterosalpingograms (HSGs), saline sonograms (SISs), endometrial biopsies, mock embryo transfers, and more.  

Erika currently cares for patients as a Nurse Practitioner at SGF Atlanta’s Marietta location. In her free time, she enjoys boating, sailing, paddle boarding, and relaxing with her family at the lake.  



  • Bachelor of Science in Nursing, Baylor University, Waco/Dallas, Texas
  • Master of Science in Nursing, Vanderbilt University, Nashville, Tennessee  
  • Perform ultrasounds including baseline, monitoring, and obstetrical   
  • Perform intrauterine inseminations (IUI)  
  • Perform hysterosalpingograms (HSGs)  
  • Perform saline sonograms/mock embryo transfers (SIS/MET)  
  • Perform urgent care evaluations for pain and/or bleeding  
  • Perform gynecological procedures such as endometrial biopsies   
  • Perform physical exams   
  • Review lab results and assist in clinical decision making for patients   


I have always loved working in women’s health. There is no greater feeling than helping people grow their families.

I love to spend time at the lake with my 2 kids and my husband. I enjoy boating, sailing, paddle boarding and relaxing with my family. 

I grew up in Texas two stepping with the best of them.

Public events & seminars

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March 27, 2023

5:00 p.m.

March 30, 2023

5:30 p.m.