No motivation(killing me)

Sorry to rant on but I honestly don’t even have the motivation to get out of bed to make a cup of tea, take out the bins all the we small things... I just laze about all day every day and can’t get myself out of this routine at all and it’s starting to really make me depressed! Would it be safe to start anti depressants at 28weeks pregnant because I can’t do this anything. it makes me so I unexcited for my baby because the thought of him coming is draining me already 😩