Period came late, blood is super dark and thick.

Michelle

So my period came 4 days late. My boyfriend wanted me to take a test since the last time we were intimate was 3 weeks ago. We use the pull out method and yes I am aware it’s not the best/safest method but it’s worked for us. My period was due Friday morning and I took the test last night. It came up a strong negative, I am retesting this Friday just to be sure. My period did end up coming today but when it came I became extremely dizzy to the point of not being able to stand and my cramps were causing me to get very nauseous. I had issues like this in middle school with each period but I was placed on BC which helped alot and got off it 2 years ago. The last few months my periods have become very irregular again and horrible. Strongly considering making a gyno appointment because something just doesn’t feel right with my body. Do any of you have similar issues to this?

Picture of this mornings blood. It’s never been this dark nor this thick substance.