Take 3 months unpaid then. We are all struggling, it’s not unique to you.
I am sympathetic to those on maternity leave. Of course it’s not what you expected. I’m worried for my friend who’s a nurse and having to go back but her nursery aren’t opening. She has no idea what she’s going to do.
I’m sure rates of PND have increased but so will have DV, mental health problems and vulnerable children slipping under the radar.
I’m worried for my own children and them adapting to going to school as key worker children. Especially as one of my DC is autistic and likes routine. I’m concerned about my 5 year old going back to school ‘properly’ yet still doing some days as a key worker child. I haven’t even got my head around the logistics of it yet. Do you know how many letters I’ve had from school that I’m trying to get my head around as well as try and explain to a 5 year old who breaks down in tears occasionally because he can’t deal with the constant changes. Not to mention how I get him to school when his older sibling isn’t going on a day I’m not working. I’m worried they aren’t seeing their friends. I’m worried my eldest doesn’t want to go outside.
What about the fact that as a nurse I’m still working. Maybe I’d like three months off?
clothes for the baby now he's outgrown almost everything because no shops have anything in stock- have you ever been in a position where you can't even clothe your child?
I hate to tell you this but children don’t just stop growing after babyhood. Where do you think all of us are getting our children’s clothes and shoes from? 
I’m not sympathetic to my fb friends who have posted a picture of their 10 month old wondering what the outside world is like. Well, you’ve had most of your maternity leave so I’m pretty sure they know and you can still go out. Why do you need more time off? If you’ve just had a baby you’ve still got all of your maternity leave.
And what if the situation is still like this in 3 months time (which it will be, CV isn’t going to magically disappear), how many extra three months would you like?
We are all bloody well struggling, try and realise this. Everything is fucked up right now, it’s not exclusive to anyone. Don’t you think we all want time where we aren’t stressed? I know I do.