Feeling my uterus more taut today.shud I b worried???

Syera8 • Mommie life💑..Rainbow baby due ❤ 26.10.16 ❤..excited and nervous..praying for my lil miracle😇..so he couldn’t wait for too long to meet us and our lil peanut was born on 29.09.16 via C section.life hasn't been the same since..never felt more complete ❤
Em 23 weeks today and feel my lower abdomen more taut than usual..not experiencing any contractions per say just a tightness of sorts..should I be worried??