Do not let the daycare lapse. Stand your ground and trust your gut. She may get mad... But I firmly believe your sons safety is far more important. In addition to his safety, Organized daycare is sooo good for kids his age. My kids were home with me until my son was 15 months (daughter was 3). I resisted formal daycare... And know I wonder why I didn't do it sooner!! The schedule and regularity, and socialization they have received has been sooo good for them. Honestly, I think having daycare right now provides them 8 hours of security, guaranteed... 5 days a week.
Stand your ground Shellcrusher.