Could I be pregnant

Raquel • Hi my name is Raquel I have a set of twins boy and girl I`m 24 turning 25 in January my husband is 38 yes I know there`s a 13 yr age difference but when it comes to love age don`t matter my twins are2
I had miscarried in Feb and a d&c in March I have been having sharp pains and like when I bend or try to pick something up off the floor there's tight pulling on the inside around my belly button my breast are huge and nipples are dark and very sensitive to the touch