Overwhelming anxiety about becoming a mum

Hi! I’m currently 36 weeks pregnant have had a very easy and enjoyable pregnancy. However, I all of a sudden feel overwhelmed with anxiety and doubt about becoming a first time mum.

I'm terrified I won't cope, that I regret the choice to have children and I feel terrible.

I have a supportive partner and family but just don't want to tell them how bad I really feel. I think from all the questions of doubt I ask my partner, he understands my feelings and tried to reassure me but he is so excited about becoming a father and this new life we’re going to have and I’m so scared that I’m going to hate it.

Will this last forever? Is having a baby that bad?