Girls, hi! I'm 27 weeks pregnant and I feel like sleeping all the time…

Girls, hi! I'm 27 weeks pregnant and I feel like sleeping all the time, weakness...My urine analysis is normal, blood pressure fluctuates, and I'll be having my blood drawn on April 12th, results on April 13th. Can blood test show any abnormalities? Or do such symptoms occur in many people? Have you been prescribed any medications for these symptoms? It's my first pregnancy and I don't even know if there can be this kind of feeling even with normal tests.