MIL Advice needed!

Okay so my husband and I have an almost 3 year old toddler and I’m due to give birth any day now. So a week or two ago we told my husbands mother to self quarantine so she would be ready to come to our home and watch our daughter while hubby and I go to the hospital to which she agreed and understood the importance of the quarantine. So on Thursday after my OBGYN appointment I texted her to say we will be stopping by to pick up some packages. (We live in an apartment building and ups has a habit of not actually delivering things to our doors and just leaving to parcels by the elevator so when we order things we just send it to her house as she doesn’t live in an apartment building) and she responded that she wasn’t home and that because it was such a nice day she went for a walk. Okay I didn’t have a problem with her getting some fresh air however if she just went out for a walk she could of met up with us back at her place but the way it was said was like she wasn’t close by. So we just went home and figured we’d pick up the packages another day. Later that night my husband called his mom to find she was at my SIL (husbands sisters) house 30 minutes away as he could hear his sister and our nephew and his sisters fiancé in the background to which is when she admitted she was over there.

So now both my husband and I have concerns on whether or not it’s safe to have his mom come here to watch our daughter while I give birth because we don’t know if she was exposed to the virus. BTW we live in Montreal were there are a lot of cases and it’s not under control yet so it’s pretty risky but that means that I would have to give birth by myself as my husband would have to stay home with our daughter. ☹️ My due date is the 26th so in a couple of day’s and I’ve already started having on and off contractions and started to dilate. So there’s a good chance I could go into active labour any day. With my first I went from 0 to 2 centimetres in like 5 minutes! Ugh what would you ladies do in this situation?