ICan, firstly I am so, so sorry for your loss.
I am a year down the line from you, although my DDs were 3 and 1 when DH died. I want to tell you that it does get easier, and sometimes it is. Sometimes though I still feel like I can't breathe, like I will never stop crying. But of course I do - I draw a breath, my tears can stop as suddenly as they started, my children come along and do or say something to make me smile.
The following, days, weeks, months, years even are going to be so hard and the only advice I can give to you is to just be very, very gentle on yourself and take one tiny step at a time. Crying doesn't matter, it doesn't show weakness (sometimes when people saw me cry, particularly older relatives, they told me I had to be strong, as if by crying I was somehow weak).
Go with your emotions, I know I felt so many different, conflicting things would come into my head one after the other, competing for my focus. Just go with it and recognise what has happened is a really, really big thing. Your life has changed forever; all the hopes and dreams and plans you had for the future sadly have to change. It will be different for you, impossible sometimes but you will somehow cope and come to a point where you can start to embrace the things you have, and look back on the precious time you had with DH before you lost him.
Counselling can come in time. Cruse normally have a 6 week plus waiting list and you can see if your GP can refer you too. There's loads of help out there, but just be gentle on yourself and realise you don't have to do any of this immediately.
Use all the resources around you to help. Just do the absolute essentials yourself (I know with death comes an awful lot of crap with paperwork, etc). Mostly, look after yourself and your tiny baby as best you can. And please, please don't be hard on yourself. You don't have to conquer anything at the moment.
A couple more things. Congratulations on your baby...it seems really odd saying that on this thread, but having your baby is an amazing, lovely thing and I hope your baby does bring you joy. I used MN a lot when DH was first diagnosed with cancer, in the year we lived with the illness and then when he died. There is a huge amount of experience, love and support on here. Use it. And when you're ready, I would love to hear more about your DH and what made him so amazing. 
A massive, huge hug to you. xxxx