Cramping after ovulation ! About 8DPO

First time trying to conceive.. I have had a lot of pregnancy scares in the past with hubby, just now decided we was gonna actually try. I was having sex almost everyday of my fertile window then took a Dollar tree ovulation test, since I do not usually see fertile mucus.. CAME BACK POSITIVE & had sex on that same night as well. I was bleeding during ovulation in sex never happened before, and also now I been cramping almost  everyday in my ovaries and lower stomache , been very moody and irritable and also having bad back pains today 8DPO but no implantation bleeding yet.. Just lots of creamy white cervical mucus .. My husband is not really the healthiest, he smokes too much and always eats junk food .. I hope I gets BFP any other ladies experiencing the same or have ? PLEASE TELL ME .. I am beyond nervous. My period is suppose to be up this Friday , being today is Monday.