help me! i'm losing my partner :(

when i was pregnant, my partner was all over me. we would sometimes even argue because i was so mad he wanted to do it EVERY DAY, all day. i had my baby a little over two weeks ago. and i've gotten my libido back. and i've tried to have sex so many times. but he just seems stand offish. or he'll make up an excuse or just brush it off like i'm not standing right here trying to have sex. i don't know if i'm overreacting or what.. but anyone have any advice on what i should do? is it me? am i not attractive anymore? or am i going about it wrong? **update for those who are commenting about 6 weeks: I HAD A C SECTION SO MY DOCTOR SAID I CAN HAVE SEX WHENEVER I FEEL I'M READY***