Am I totally mad?

[Fire Fly]

I cant believe im actually asking myself this but ever since #2 DS was over the newborn stage ive been considering makeing number #3.

So am i totally mad?????
Im 35 which freaks me out cause i said that was my cut off age.
Theres one income coming in and things are tight, which another baby may or may not make any difference.
My husband says 2 is enough but im sure i can work around him.
But the biggest prob is im still BF DS and im not about to wean him for the sake of trying again so that means i might be close to 36 when he does wean. Im so scared of the complications that come with being pg and being older, not saying that 35/6 is old but thats when they say complications start.
Im also extremely fertile so falling wont be a prob so once the descision is made i cant go back kwim.
Oh the other problem is DD is adamant she doesnt want another brother or sister, she is only 3 1/2 but her oppion matters to me.

I just dont feel as though our family is complete if that doesnt sound to weird. DH is booked in to see the ball Dr next Wednesday and im tossing up wether to cancel it.

Put my mind at ease please, tell me what i should do.