Question: 18 weeks pregnant when to worry?
Answer: Swollen feet and/or hands. Swelling can be an annoying pregnancy symptom. ... 
Backaches. Baby is putting a lot of pressure on your insides, causing aches and pains in your back.
Leg cramps. ... 
Varicose veins. ... 
Trouble sleeping. ... 
Nosebleeds. ... 
Baby kicks.