with the current pg it was the INSANE tiredness. i remember that the day before (we were on a road trip) that i was able to drive for the solid 2 hours take a break, then back behind the wheel. then literally the day after (soooo 10 DPO) i couldnt even do 45 minutes and had to get DH to take over. i also had quite alot of creamy CM, when usually by that stage it would be more clear/sticky (sorry if TMI!).

HTH! and goodluck!