Defo a mum to be there! So, you obviously have a male or two somewhere in the vicinity and quite possibly her own mum. You may have more hogs than you think and soon to have few more. That looks like quite a hedgehoggy garden with lots of cover too so all looking good. Keep up with the food and water and you should be in for plenty of sightings to come.
Once she’s given birth she can pop out for a quick hunt for food/water at any time of day or night including middle of the day so make sure there is something available 24/7 because she won’t want to be away from the nest for long. The new mum here is doing no more than 20 minutes per hunting trip at the moment so she’s obviously got some demanding kids at home!
Oh, one more thing, she needs a name!