Undecided!

My LO is currently 2 months old and I am going back to work in 1 month time. I intended to enrol to IFC since last year and I am on their waiting list. And I do consider looking for nanny nearby my estate. After much consideration and advice from family member, they are discouraging me to send LO off to either nanny or IFC. They were saying LO is too small and suggested that I quit my job and be a sahm. Just want to hear out from sahm, did you regret for the decision made for sacrificing your own job and chose to look after your child. I am stuck in between, although I wish to spend more time with LO and personally take care of him, but I am worried that I might regret.