Sex and pregnancy

Jessica

Okay so I came off the pill then pretty sure got my normal period. Was very heavy and cramps like I use to have. Terrible! Then I skipped July but not pregnant and we were trying then decided to try in August and we had sex sometimes everyday to every other day. I had sex the 7,8 and 8th had mild cramping then more cramps the 9th. Also had sex the 11th and had cramps the 12? High risk of pregnancy or what??