FTM, can I breastfeed?

I had a breast lift and implants years ago and have no sensation in my nipples. I’m 32 weeks and wondering when I’ll know if I can breastfeed - I bought a breast pump because it’s covered by insurance. Is it possible to know in advance if I’ll be able to pump/breastfeed? Is it worth trying out the pump a few weeks before delivery? I haven’t had any leakage so far.