I just need to vent 😞

My self esteem has dropped so low. I dont even want my boyfriend to see me naked anymore. I used to weigh 115 I now weigh 148. Sunday i woke up to a call and i guess people were asking my mom if i was pregnant because some of the photos my aunt had posted of me on Facebook. That right there really dropped my self esteem because i have been SO self conscious of my weight already then my boyfriend and i were having sex today and i started on my side then when i turned over to face him he went soft....i dont know why but that just made me feel so self conscious. Now im in the bathroom crying because i feel like hes not attracted to me at all anymore...