Help...

I'm just really venting, I have no friends, no family, I'm stuck in a house by myself all day with my 4 month old and i love him so much dont get me wrong but i need my husband to help and he feels he doesn't have to cause he works. Our relationship is fading, were never sexual, I mean I saw his search history and every time he can get away from me he watches porn, live cam girls, videos, and I dont care that he watches porn but God damn I haven't had more than the time it takes to take a shit away from my child since he was born, he has changed one diaper, sex hurts so bad I never get turned on any more, I am feeling depressed but I can't go to the doctor because I can't afford insurance for myself but he makes too much to get help from the state, I just want lay in bed all day, I don't feel beautiful anymore, even though he tells me I am, hes sweet as hell and I'm neglecting my husband because I am putting so much energy into the baby. I dont feel like myself, some days are harder than others, I just wanna give my family a good life. I feel like a shitty mother because I'm chubby and I dont have the energy to work out, my day goes: wake up at 7am, change child, make breakfast, prepair husbands lunch and take out anything for dinner if I need to, play with baby, husband goes to work, baby takes a nap then I clean the house, baby wakes up I care for him, nap time again I take a nap, then I kinda just fizzle out, cry, get depressed, make dinner, feed family, get ready for bed. How the hell do I tell him I need help without him getting mad.i just feel like I dont belong here. Like hes just gonna find somebody else cause I can't make him happy or I'm just gonna give up on our relationship cause I feel I'm not satisfying his needs. I dont want him to go outside of porn with his needs but I'm just not ready to jump into the sexual relationship we had before baby yet, he doesn't try and seduce me anymore and when I try hes not in the mood which was weird. Idk what to do I guess I'm just ranting. Does it get better?