If you have one or more children already, how do you manage while being pregnant?

Er

So my daughter is 14 months old, she'll turn 2 at the end of May and I just found out I'm pregnant again and due at the end of April. With my first pregnancy with her, I had horrible morning sickness and ended up with HG. It was so rough with vomiting every single day and dealing with visits to the ER. I'm starting to get really concerned with this pregnancy because now I have a child I have to take care of while potentially going through the same stuff again. If you've been in a similar place, how did or do you manage? My husband is great and so supportive, but there's only so much he can do, since he does work full time. I'm a stay-at-home mom at the moment. The only real hope and encouragement I have is that it only lasted until I was about 18-20 weeks.