Weight insecurity

I went from 194-173-143 cause my morning sickness for three months was so bad... I’m eating more now but small portions. I know he didn’t mean anything rude by it but my SO definitely misses my curves and said he hates how skinny I am cause I’m almost back to my high school weight. I know it was harmless and I shouldn’t be offended but it makes me feel insecure, I’m trying my best. I’m only 15 weeks almost 16 so I still have awhile to go... anyone else having similar thoughts