I’m 26 weeks preg, and i only gained 6 kilograms, I dont wanna eat anything everything looks unappetizing to me and nausea is making a vome back! Anyone else!???

I will be 41 :/
Short Luteal Phase?
I've just started temping because I believe that the reason I haven't had a BFP yet, after 20 months, is because I believe I may have a Luteal Phase Defect.
Things I never thought I'd say...
Until I became a mom:
Yesterday I went out with my boyfriend went to watch a movie, me and him don't live together yet. but point is yesterday when he was dropping me off his like sleep over at my house witch the mom and dad lives. I said no,
his response was why is everyone deciding or making choices for you and their going to do the same with the baby, when I know that's not true. what he thinks is that my mom tells me not to sleep over. So he left all mad. and I felt in my heart that he went on and cheated on me...
I’d gained 7KG by 26 weeks but I looked like I gained a lot more since I retained a fair bit of water. It’s normal don’t worry about i5