Anyone else annoyed with their toddler

Since becoming pregnant with my second child , it seems my first child has literally taken away my sanity and any nerves i had to deal with him . The tantrums are unbearable, his voice, clinginess everything is officially to much !! I have contemplated numerous times about dropping him off at a "safe place" or leaving him at school. I have no more patience left for him. Ive been with him since he popped out 365 by myself (dad isnt in picture) and havent had more than a few hours away from him. I want to drive in my car and not come back. I dont know if its this pregnancy or what but ive had it