Need words of encouragement

Well even though I feel so blessed to be expecting baby number 3, but I’m also terrified. So I have a 9 month old right now and so I have concerns about having two babies in diapers and I know that will be hard. I’m thankful I have a supportive husband and my oldest is ten so he will be a huge help as well. My mother babysits my 9 month old and she has already told me over and over again not to have anymore kids since she will be the one helping me out with babysitting and such. It just sucks when I feel like she is going to be so upset when I tell her about this pregnancy. I wish she was more supportive. I also have concerns about having a third c-section. Any similar stories? Moms with multiple kids close in age how has it been with having two so young?