7 dpo and feel I have been hit by a bus

So exhausted - I mayyyyy be getting sick? 🤷🏻‍♀️ we had a long weekend of packing (moving) but I am more than just tired. I took a 2 hour nap yesterday and left work this morning after a full night sleep and slept more... for those of you that have gotten a BFP was this a sign? I know it’s far fetched as a lot can cause exhaustion it’s just I am soooo tired