I Um Well My Period Started Sept The 7th And

i um well my period started Sept the 7th and etidtimated ovulation on the 21st I've had symptoms like bloating , constipation, cramping , but no implantation bleeding we had sex on the 12th (on my period) and also the 14th , 17th , 21st, multiple times a day how are the odds of me getting pregnant ?