First time mama

Hey, so I have just found out 1st April that I am pregnant! Ihobestly could not believe it... I actually had to ask someone if it was definitelya positive test, even convinced myself it was a joke test that only give you positive tests. So 8 tests later I finally came to the realisation that I am indeed pregnant. (Now I just want to say because I know that people may think I am being ungreatful considering loads of woman may never conceice or have been throufh loss of a child. This was not a planned pregnancy I was not doing the devils tango to get pregnant.) The contriception had actually failed, also upon telling the baby daddy I was pregnant he told me he wants nothing to do with me.or the baby. Now I am sat preparing for the fact of I am going to be a single mother. (A fact that is so scary to me as I thought when I evebtually had kids I would be with babys dad.) My midwife are estimatìng me to be around 5weeks pregnant (going from the first day of my last period). But since I am a single mam I have already started looking at baby things (All the essentials).... so to cut a long post short does anyone have any advice where I can get some things for my baby what is not going to cost me an arm and a leg? (I am in England) any advice would be massively appreciated!