It is not impossible, but the 3 hogs probably weren’t Mum, Dad and baby. They don’t tend to do happy families. The Dads normally just do their bit and then leave Mum to get on with the rearing by herself. One litter of hoglets can even have more than one Father.
My remaining camera went totally mad the night before last and there were 991 videos! Nightmare. For some reason it looked as if it had decided to record a video at the rate of two a minute, whether there were any hogs there or not – until the batteries got too low. I couldn’t look through that lot so just had to check random ones. I haven’t dared look at last night’s yet!
If you are getting Pat Morris’s Hedgehogs book, make sure you get an up to date version. Mine is a revised edition from 2014. I did hear there might be a newer one but not sure. It was originally published in 1983, and some of the information is slightly out of date (such as the bit about bread and milk.), but there is loads of really interesting information in there.
If you are keen to learn loads and don’t mind if some of it is a bit academic, there is a very good website, again, with loads of information about all things hedgehog.