Please help me.

I’m currently 7 weeks pregnant with my second child, and my daughter is 16 months old. To say I’m having a hard time is an understatement. I am struggling to the point of exhaustion. I feel suicidal and incredibly depressed. I don’t want to do anything other than sleep which of course is not possible. I feel guilty because I’m being a bad mum to my daughter for not being happy or doing anything with her. I don’t remember the last time I took her out to soft play or just to the park. I am too anxious to do so. And quite honestly, I just don’t want too. But it’s worse than just “I don’t want to”. I feel like I physically can’t. I’m so sad and tearful all the time. I don’t know how to stop this. My house work hasn’t been done for a month and I have gotten grief from my partner for not doing it. But I just can’t. I don’t wanna die but I just feel it’s the only option I have.

What shall I do?