Over reacting?

We found out we are having a girl this time around. My issue is my mom, (a little back ground first) my father raised me & my two sisters as a single parent because my mom left us for drugs and other men. We've had a huge roller coaster ride between her and i. Now were ok. She hasnt been on drugs since she came back into my life. Well When i was pregnant with my son she helped alot. But not as much as now, shes buying a whole bunch of stuff for my daughter, pushing alot of suggestions on me and trying to buy everything in a way that i don't feel is right. Example: " i bought this so she can remember me." or " you should get this color, so she can think of grandma" i cant help but feel she is trying to stake her claim on my daughter already. Im not sure if its because she want there to raise me so she wants to make up for it with her or shes just being a grandma to a little girl but i feel in my gut shes trying to make right what she didn't do with me. I already talked to her but it hasnt changed. I just dont know how to handle it.