Help please

Hey girls :) im really needing some help so when i was 16 i got pregnant with my first baby everything was good before hand especially my sex life but like after i gave birth sex hasnt been the same we cant even make real love no more or even go long i always get pain in my stomach and my body just crinches so much its like my physical love for my husband has gone 😢 i hate this feeling i want what i once had bad so bad please help im now 22 with 2 kids.