Implantation Help

Kinda long, sorry if I post in the wrong group. So, boyfriend and I have been ttc for almost a year now. I've had a pretty regular period until 5 months ago when it just disappeared. I took provera and started my period at the end of February, 22-28. I used the app in <a href="">tracking ovulation</a>. We BD every other day, held my legs up in the air, and ate pineapple when ovulation was over. I'm 6 days late for my period with negative tests. I've had slight cramping and a few other signs of pregnant/period. A few days ago I noticed light pink tinge on the toilet paper sometimes when I go to the bathroom, and if I have to wait to use the bathroom it's a little bit more. It seems like extremely light spotting here and there. I've never had implantation bleeding so I'm not too sure what I'm looking for. Any thoughts would be appreciated.