Baby shower question

My fiance's dad's girlfriend offered to have a baby shower for me as soon as we told them we were having a baby. But I'm pissed because my own mom hasn't offered to have one for me even though I've asked her about it. 
The reason for 2 separate ones is because his family is over 8 hours away from where most of my family is. It's like she doesn't care.
 How do I go about asking about it? Or should I just not bother?