DESPERATELY trying to manage these hormones!!!

I have no where else to go but here. I am 5 weeks pregnant and have 3 other children with my first husband. I don't remember the hormones being THIS BAD . Besides the intense mood swings, I am thinking up crazy thoughts! Example: leaving husband and aborting baby. (I was never an advocate for abortion) thinking about random exes and wondering if I'd be better off with them instead of my husband. Those are the extreme thoughts. This is NOT me! My husband and I tried for this baby and wanted to conceive but now that I'm 5 weeks, I feel like I want to crawl out of my own skin. I can't do and myself! Is there something the Dr can give me to help regulate these hormones?? My poor husband has no idea how to handle it...he's trying but when I'm swimming in these hormones, NOTHING is good enough. This makes me so upset and stressed. Am I the only one feeling this way?!!!