I really need to know

Lindsay
I have taken ovelation for sevrel days and the last 2 days am and pm are very positive . I thought after one day it was suppose to go down . Is this normal? Also I had sex yesterday morning but my husband is working and no chance today . We also had sex on the 25,34,23 and 26th but not 27th . My OPK turned positive on the 26th . Do I even have a chance or am I out ?