Me and DH will also wear masks around the baby. It's going to be tough but I'll do everything to save her from infection
I would think very carefully about whether you actually want to do this.
The risk of your baby catching Covid from you is very low, and babies tend to be only very mildly affected if they do contract it. Furthermore, since you will all be living in the same house there is no way a mask would work to prevent infection if either of you did get Covid. Masks prevent the spread of droplets when sneezing / coughing / talking; they won’t work to prevent you from spreading infection by touching your baby, touching things in your home, breathing in the same room all night, etc. If you have Covid and share a home with your baby, a mask is not going to be the thing that prevents the spread of infection.
It’s also worth bearing in mind that wearing a mask could actually have a serious negative effect on your baby. Babies start recognising and differentiating between faces from birth, and start differentiating between facial expressions within days (www.google.co.uk/amp/s/theconversation.com/amp/face-time-heres-how-infants-learn-from-facial-expressions-53327). Learning how to differentiate facial expressions in this way is a vital skill that helps them learn new things - they follow their parents’ facial cues when learning to walk for example, or when meeting new people. If you’re wearing a mask which covered the majority of your facial expressions, you will be hugely impeding your baby’s ability to learn about and differentiate facial expressions, and that could have a long lasting impact.
I would personally consider that a much more significant risk than the very low possibility of them contracting Covid and or having anything other than a mild illness as a result, especially since a mask isn’t going to stop infection in your home anyway.
OP - I’m going to let friends and family whom I trust hold my baby. I know that my parents, PIL, and best friend have been meticulous about wearing masks and social distancing. I’ll ask visitors to wash their hands, and I won’t let people I don’t know or don’t trust to have socially distanced hold the baby, but other than that I feel comfortable about it. I live in an area where infections are very minimal, which helps. My baby is also not due til December, so I will obviously evaluate what the situation is like at the time.