Am I a terrible fiancé?

Hello, me and my fiancé have been together for almost a year now and engaged for a month as of yesterday. I found out I was pregnant around my birthday in November of last year. This is our rainbow baby as I had a miscarriage in September. But I’ve noticed during both pregnancies I’ve been very irritable, cranky, starting to yell a bit more than usual / fight over the stupidest things. Obviously hormones have some play into this. I also have some back issues from a past injury which has been causing me a lot of pain recently. The point of this post though, I don’t want to be touched, he’ll give me a kiss and I just want him to leave me alone, his breath stinks, he stinks, when he touches me I get aggravated, when he doesn’t put things back in their “home” I want to ring his neck, he is just the bane of my existence but I LOVE THIS MAN. I know I love him and no love has gone away. He treats me AMAZING. I’ve heard this can happen to some women but WHY?! Am I just being terrible? Has pregnancy made me a complete bitch? Please tell me things will go back to normal. All of these feelings but at the same time I just wanna cuddle him and be held by him and cry. But also leave me the fuck alone? HELP!! This is my first pregnancy that has progressed this far and I feel like I’m going crazy