Super sleepy!

Sa
Hey guys! Quick question, my husband and I are ttc and I'm in that waiting period between LH surge and AF. Fingers crossed. But I've noticed that I have been INSANELY tired. Like sleeping 12 hours for the last 2 days. That's really strange for me considering I usually sleep between 6 and 8 hours. Could that have anything to do with ttc or pregnancy? Thanks for all of the love and support ladies!