Pregnancy after 3 c-sections and 2 hernias?

Im 26 years old have 3 daughters 8, 6 and 3 years old all born by c-sections no complication. Im a small frame and healthy weight. I had a small inguinal hernia repaired with mesh last year and had a small femoral hernia also repaired with mesh a month ago. Obviously muscles are weak from the pregnancy's and c-section and my hernia specialist told me its not ideal to have any more children but not that is wasn't out of the question. We would like one more child one day but i worry that if we should get a 'surprise' that things could be complicated so we are thinking about my partner getting a vasectomy but only if it was absolutely necessary because its to risky for me to be pregnant again. So if any one has had the same or similar experience please give me any advice thanks.