Oo normal yan sa 28 weeks, mama! Ang tightening ng belly mo (Braxton Hicks) ay karaniwang nagsisimula around this time, at ang pagod ay totoo dahil ang katawan mo ay sobrang busy supporting baby and all the extra weight. A few of us preggy friends namin ay nag-experience din ng same thing, isa sa amin nag-panic thinking labor na agad, haha! Just make sure you're resting enough, drinking plenty of water, at kumakain ng balanced meals kasi 'yan talaga ang nagpapalakas. But if the tightening becomes painful, regular (like every few minutes), or may spotting or bleeding, best to message your OB right away para masigurado lang na lahat is good with baby. You're doing great, mama!