Hun, you will be fine and pls dont doubt yourself like that there is no school in the world that can prepare you for motherhood it is always an ongoing lesson and you will adapt to it i promise...

Your nearing the end and like many your feeling the weight and responsibilities more and more now but i can guarantee once this baby is here you will look at your situation differently
Have you spoken to the Mw's at your appointments about your feelings? not so much the last thought you mentioned but about being unprepared and feeling like you wont cope?

You rchildren are at lovely age gaps now so your toddler will fell automatically like they are going to have to step up a little its just a little instinct they get..

Big hugs hun, i for one know the feeling and anxiety of having another baby but you will be ok you just need to tell yourself "Im ok"

DO you have alot of support around you?
Even here you will find a whole truck load full