Hello Courtenay1826,
Welcome to the gorup. 
No I didn't have splenomegaly whilst I was pregnant as I don't have a spleen. My spleen was removed when I was 8 years old. During my pregnancy all was normal and I carried full term, 40 week gestation and had a normal labor. 
If you have any further questions please feel free to ask. 
Kind regards 
Miaki