Am I having implantation bleeding??

I’m kinda curious if I’m having implantation bleeding? I’ve don’t remember having with any of my other pregnancies, I could have but I can’t remember. Anyways, my period is due tomorrow but yesterday I was feeling off so took a test got a faint positive so I took another one first thing this morning and it’s definitely positive a lot darker. Well, now I’m starting to have some bleeding?!?! It’s not like a whole lot and mostly when I go to the bathroom and it’s in between a dark and bright red color and there a whole lot of mucus (sorry for the TMI) I have a few lower abdominal cramps but not that bad and they have went away now. I’m around 4 weeks and 2 days pregnant. The bleeding just kinda worried me didn’t know if anyone else has experience this too??? My OB said a lot of women can having bleeding up to 12 weeks pregnant. And said if I start feeling a pad to let him know ASAP or go straight into the hospital if pat office hours. I only see the blood when I pee and wipe. Any advice or anyone who’s experienced that could help me I would greatly appreciate it. I’m just a nervous wreck because back in January I lost my baby boy at almost 24 weeks. This pregnancy makes my 4th I have 2 children now. I’m 30. Thank you!

Ps. I’ll post my pregnancy tests to show just praying for the best. Kinda hoping maybe it’s something to do with implantation bleeding....