I want to quit my job today

So I am having a mc and I would've been due in March. I have an in home daycare. It was so early on I didn't tell any of the daycare parents. This morning one of the moms tells me that she is pregnant and my heart sunk. She is so nice and she has no idea I'm miscarrying. But it hurts so bad. I now am going to watch her get bigger and am going to care for her newborn around the same time I would've had my baby. Just wanted to vent. It's so painful😔😢😢