Tailbone Pain during 2WW/early pregnancy

Hi ladies :) Don't know if I am pregnant or not. Currently 3 days late & no signs of AF & negative test as of today (1st day I tested). Plan on testing again at the end of this week! Having a few of the usual pregnancy symptoms & bbt temps have remained high. Here lately, I would say in the last week I have had the most uncomfortable pain in my tailbone! Of course Google got me thinking & I read tail bone pain is sometimes related to early pregnancy. Any of you ladies experienced this in early pregnancy or during your 2WW?