4 weeks and 4days

Jennifer • Angel baby in my heart 27/01/017 married 01/03 rainbow baby in way EDD 15/12/2018
Ok so as it says above i am currently 4weeks 4days, but past few nights the cramps i have been taking is unreal. It is almost like Af is arriving and it makes me feel nauseous. During day i hardly thing anything but come bedtime im sore. Its more on my right side and does pass after 20minutes...... there is never any bleeding just pain..... is this normal?