How early i can make a beta?

Hi dear friends.
I guess this cycle hasnt worked either. I started with pain always at this time of cycle.
My question is how early can i make a blood test to detect pregnancy or not, because i want to be sure before stopping medication
This cycle is one of the last two i have medication. Docs dont want to do control nor treatments despite ivf. That last one cant be made before i made hystero study and cant get date clpse so i will have to take an possinle date on march. As it has to be made on 7 till 10 of cycle is diffcult to know exactly with two clycles in advance. So i wish i have my cycles as control as possible to avoid getting my period late and change al dates. Sorry if i didt explained it ok as is not my native language
Thing is im takibg progesterone and dont want to suspend till im sure there is no pregnancy. But when i stop taking progesterone usually takes me till 3 days to get my period. So thats why i want to do blood test. Because if i wait to long to be able to do a TE my period will be so late and dates of my cycle would change a lot for study on march.
Im on my 24th day of cycle. I got to positive on 13th of cycle. When do yoy think i could make a blood test please?
Thank you for your support.

You can take the test 8 days past ovulation but it's not considered reliable till 10 days past O. And even then, if you actually ovulated a day or two later than you think, you could end up stopping medication on a viable pregnancy. So while I know it's hard to do I'd wait till 10 days past you think you've ovulated to do the test. And then to be as certain as reasonably possible I'd do a repeat 12 DPO. But I know that would be extra waiting you might not be ok with.

Thank you so much dear friend for your soon reply. Ok tomorrow would be my 10th day post ovulation if i ovulated on 15th of cycle. Its not a rule but each month i usde clomid got to result positive on 13th and end up ovulating on 15th. Considering if it was the same this month i would wait a day more following your words. I will try to test on my possible 11th day post ovulation. That would be the day after tomorrow on wednesday.
I dont have hopes of being pregnant as pai is too strong to be ok anyway..so..just to be able to leave medication and not to worry about about it. I will keep updated. Thank you!!

But we can't count on it being the same this month. It is very often different for people.

Hopefully we will get a positive on the Beta and have our answer then!!

Well today finally got mu beta result. Laboratory enter wrong info and didbt send mu resulta by email had to attend today to look for them. As i was already expecting it because my temp went down and have lot of period pain but..still result made me sad..its negative. Just got 2 as result. A negative. So..not baby this month. We will try our last next month with clomid and progesterone. Then have a new date end of february with another fertility center that cover my medical assurance and will try to schedule my hystero...lets see of we get in time to get at least one treatment before medical assurance stops covering them. Hugs for you dear friend

FXFXFX and I'm :pray: that everything goes according to plan and you're able to do your IVF cycle (or better yet that you won't need to since you'll be already pregnant!)

Thank you so much dear friend! Tomorrow i star with clomid. Hugs! Thank you for your nice wishes. Ill keep updated

Good luck! Hope it's going well for you!