Starting ALL over

April • A wife and mother of 4 (2 natural 2 step-children who I adore). Celebrity stylist and owner of hair and makeup studio.
When I met my husband he had full custody of his two kids (boy & girl) His son was 3 and his daughter was 2. I had a daughter as well who was 1 (1,2,3 😂) after 2 years of dating we had a baby girl. So that makes 4 kids all under the age of 6 😳😖 we had our hands full. It has now been 8 years going on 9. Our youngest is 8yrs old and we have decided to have another baby. We are in our early 30s and know this is our last chance (35 is my cut off time)
However it will be starting ALL over lol. 
Pros: kids will be a big help at they age, the oldest will be in college by the time the new baby starts school, finally it will be nice to have another baby and it only be one baby (not like before when they were so close in age) 
Cons: Starting All over 😳😊
Anyone else have any similar experiences? Thoughts and comments please....