I am due to have my second baby in 3 weeks time...

I am due to have my second baby in 3 weeks time. I breastfed my DS for 10 days and stopped due to really bad mastitis which was very difficuly to get rid of - 2 lots of antibiotics and it still didnt clear. My son is never sick and we have a close bond I felt fine about putting him on a bottle. I just dont know what to do with this baby. I am thinking that I will bottle feed her pretty early on as I am concerned about the physical strain and how DS will cope with me breast feeding, also my DH was always a huge help with bottles and has offered to do the last night feed anywhere from 9-12 so I can get to bed early. Do you think I should breast feed the baby in hospital and do breast and formula alternating or should I put her on formula from the very start and skip breast altogether? Please help me I am very confused