5dpo who’s with me? 😃 TWW

So 5dpo today! I tracked using opk’s this month will track bbt next month if af shows as I didn’t have a thermometer this time. I O’d on the 15th and Since 3dpo I have been really fatigued and just want to sleep all the time. (Not like me at all) and I know it’s to early for pregnancy symptoms it’s just odd for me to be this tired for no reason. Today is 5dpo and I have a stiff lower back and just feel a bit run down and still feel really tired even tho I slept so much yesterday.

I know progesterone can cause these kind of symptoms but I’m wondering if my egg was fertilised would my body produce more progesterone than normal. Because I never feel like this at this point in my cycle. I’m hoping and praying 🙏🏻 this is our month 🌈