I am currently 20 weeks pregnant and here lately I have been completely drained of energy. I sit down to fold clothes or something and I find myself falling asleep. I have been sleeping alright at night so I don't know why I would be this tired during the day. I was recently put on bed rest because of spotting and cramping due to my stress and activity level. Is being this tired normal or is this something I should talk to my obgyn about next week?