So I am trying to get pregnant but we started a week before my period and after a few days of having…

So I am trying to get pregnant but we started a week before my period and after a few days of having sex I got pregnancy symptoms like the cravings, the powerful sense of smell, the raised body temperature, my boobs hurting and being tired and bloated. Well so I had sex on the 19th and my period was due on the 28th and when the 28th came around I normally wake up with my period but I didn’t it didn’t start until later that night, but it was lighter then normal because when I have a period it gets really heavy the first 2 days. And it’s like pinkish well yesterday it wasn’t exactly heavier but I was cramping really bad on and off and that’s not normal and every now and then I get a sharp pain in my side but there was barley any blood on my pad but when I wipe its bright so wondering if I’m getting heavy implantation bleeding or not. If anyone knows please tell me.