Inconsistent weaning

I feel like a mess. I have a 2 year old who I weaned for 2 days on the 3rd day I started feeling so sad and I caved for bedtime. I had told her for 3 days “boobies hurt” and put band aids on them. It’s been taking her over an hr to get to bed so I caved and nursed her tonight, I also just feel so sad I’m not sure why. I was/am trying to wean because I’m 5 months pregnant and have a bad aversion. I feel like I’m messing her up by being so inconsistent, please help me on how to fix it my hormones feel all over the place and I feel really bad now that I’m so inconsistent with weaning or not. I also want to wean her completely before I have my baby in 4 months so I’m upset that I gave In. How do I do this now that I introduced the boob again. Will being so inconsistent be damaging?