I'm curious ?????

So I had protected sex 3 times last week and one of those 3 times it was on the highest chance of pregnancy 33% but on my other two calendars says I had unprotected sex 1 day before my ovulation what's my chance of pregnancy I don't have any symptoms I just been having cramps but they come and go and I'm suppose to start my period next week on the 10th of this month HELP!!!!!!!!   I'm really trying to conceive sooo stressful what is another way I can know I have any chance sent me baby dust please