So I'm freaking out ! I had 2 partners in aug.
On the 5th of aug and I took plan be on the 6th of aug and I then got my period on the 16 of aug. after taking the plan be and after having my period I had sex multiple times with my partner ! I need to know who is the father an when did I get pregnant. It is now oct 12 an I'm announced 8 weeks pregnant.. The guy on aug 5th did not ejaculate in me but we did have sex for a long long long time which is why I took plan be the day after . On aug 25th I recall having sex with my partner and he ejaculated completely in me and I took plan b 3 days after who is the father I'm so confused and worried please help asap

You won't know until after the baby is born and a paternity test can be administered.

There is no way to know 100 percent, you will have to do a DNA test to be sure.

Plan B , is not 100 percent effective even when taken within a hour or two.
And it is possible to have first period and be pregnant ( not as common but possible)
He does not have to finish in you, all he had to do was be in, there is plenty of sperm in the early fluids,

So while not as big of chance, First guy is slightly possible, but possible.

Person two, you really waited too long for Plan B, it gets less and less effective the longer you go, and has almost no effect after 72 hours. So if you waited 3 days, that is 72 hours.
So guy 2 has more chance, and it can be him,

But because it is possible, although just slightly, Guy 1 can not be ruled out completely.

So after baby is born, just get a DNA test done to be sure.