No period..negative tests.. symptoms

Sooo I was supposed to start my birth control this month on my period yet I haven’t gotten my period yet. My husband came inside me a little bit accidentally .. I know I know I don’t need the lecture lol and before I decided to take plan b or not I checked if I was ovulating and I had a dark ass line that day so I assumed Yea I’m ovulating or about to so forget plan b nothing I can do now. Checked for ovulation the 12, 13, 14 they were dark lines, the 14th was the darkest. So I assume I ovulated by the 14th. My period was due the 22nd. So now it’s 4 days late. I’ve been taking pregnancy tests with no faint lines on the early response tests which worked for me before (I had a baby 8 months ago) I did try a Walgreens test and it seemed like there was a faint positive but those are notorious for being crap. My boobs have been hurting and I have cramping which I’ve been having for a while. ..if going by the 14th is when I ovulated I should be 12dpo by now.... I should get a faint line or something right? I don’t know if I should just expect my period to come or what. Also another thing that happened to me is thursday I had a tiny bit of spotting or something and nothing since. Last time I had a tiny drop of blood was implantation bleeding when I was pregnant. So I really don’t know what’s going on. My cycles been a little longer since having a baby but it comes monthly. And now we’re going on cycle day 34 or 35. Help.