My partner does not have sex with me

Melina • 22 ; been ttc for 5 years now. Unfortunately we had a miscarriage on December 1 2016 👼🏻
Ok so my boyfriend and i been Ttc for about 3 years but i dont have insurance so i cant see a doctor but lately he has not been in the mood to have sex with me every time i tell him he just ignores me, should i be concerned ??? HELP!!!!