Multivitamins

My partner and I want to start trying for baby number 2. I am currently still breastfeeding my 16 MO, and taking Lee it breastfeeding to support my/our nutrition. My question is, should I change over to the election pre-conception now? Even though I’m still breastfeeding? Sounds a bit silly now that I’m typing it, but I want to make sure I’m doing the right thing. So hard with doctors app at the moment with strict stage 4 lockdown for covid in Australia. Any tips would be helpful, thank you!