Breast Pump - Life Expectancy? 🤔

Question about pump...

I got Spectra S1 in Summer 2017 for when I had my daughter. I EBF for 12mos so until just recently. However in the beginning I pumped after every nursing session for about the first 6 weeks (about 6-8x a day). Then only pumped 1-2x a day when she was sleeping or I was out or what not and she had bottle. I noticed towards the end of BF journey the output significantly decreased. And had changed pump parts and everything. Nothing helped.

Now I’m not sure if it was just naturally my body making less because my daughter nursed less or also that I got pregnant when she was 11mos old. Or is it possible the pump needs replaced??

Question is being pregnant again I will need to rely on pump again come spring time. I already paid $100 for this pump (free with insurance but paid for upgrade to S1) I’m not even sure how that works with insurance. Do you even get another pump?? Is the breast pump supposed to last multiple pregnancies or do they wear out over time? It’s not like I exclusively pumped for a year. But I’m not sure the frequency I’ll be pumping with this new baby.

I guess my question is given what I said my usage of it was. Do you think it’s still good and it was just my body making less milk?? Or do I need a new pump? Thanks!