Husband would really like to try for baby num 3.... but idk if i want any more.. i rly dont have…

Husband would really like to try for baby num 3.... but idk if i want any more.. i rly dont have anyone to rely on to watch my children now and then when i have dr apts i dnt wana have to drag 2 toddlers with (we cant rely on my mother in law, shes sum else) and then the thought of a baby again jst makes me very nervous and scared.. am i wrong for feeling this way? But deep down i do want another baby....