Who typically throws the baby shower?

I on the other hand was born and raised in wisconsin and moved here about 4.5 years ago when my parents moved here. All I have here are my parents, one set of grandparents and my sister. No extended family. No really close friends. My mom is throwing me a baby shower back home in wisconsin for my family and all my friends. 

I asked my MIL when she was thinking the baby shower down here will be as this is her first grandchild as well and thought she'd have thought of it. Well she said to me "isn't your mom or friend throwing you one?" It really hurt my feelings. Like she didn't even care. My parents paid for pretty much everything for our wedding. Bridal shower too which was 90% HIS family that I didn't know. Mom just said to me "Honey I'm not paying for two showers. She needs to pick up some of the work." She didn't even offer to bring anything for my bridal shower either. We have a great relationship so I thought. 

I guess I just felt really hurt that she wasn't excited and still doesn't seem to be now that she has to put together a party. I don't EXPECT a party. But rather thought she'd want to have one to celebrate with her family. 

So who is technically supposed to throw you a baby shower? I don't really have a close friend down here or many friends to begin with down here.