Aww, labetalol is quite common during pregnancy actually, a few of my mum friends were on it too, and yeah, the tiredness is real, tapi it's one of the safer options for baby. The fatigue should settle down after a few weeks once your body adjusts, but definitely mention this to your doctor or midwife lah, because sometimes they can adjust the timing of your dose (like taking it at night instead) or tweak things if it's really affecting your energy. Don't worry, you're not alone in this, pregnancy + blood pressure meds + hormones is a whole combo, but your doc will help make it more manageable for you!