So....HELP! Does the day after pill still effective even though im 6 weeks post partum? We kinda…

So....HELP! Does the day after pill still effective even though im 6 weeks post partum? We kinda messed around and had unprotected....but he didnt bust in me it was only for like 3 min. Then we stopped....im scared as f*ck bc i dont need another baby right now!