Nipple confusion

My baby is now 6 days old and we’ve been exclusively breastfeeding. At first she had a really shallow latch but it has gotten better over the last few days. She has her days and nights mixed up so she cries all night until about 7 am. I think she has colic as well. I’d really like to try giving her a bottle at night when she’s cluster feeding but want to avoid nipples confusion. I’d also like to be able to give a bottle or 2 during the day and my husband would like to be able to feed her as well. How many of you have had a problem with it? I’d also like to be able to give her a pacifier as I know it can help prevent SIDS.