What Should Be The Day Of Intercourse To Get Pregnant?

Im trying for a baby and i have a regular 31-32 day cycle. My last peroid came on the 8/01/11 and on the 20/01/11 i noticed a change in the cervical muscus(sticky looking) so we had intercourse and again on the 23/01/11. My question is there any chance this might of worked and i could be pregnant or when should i of had intercourse?



Regards

Kate