Bleeding, low hcg not doubling, but rising?

I started getting positive tests a few days ago- super faint, but they were there. Then I started bleeding, not just spotting, but full on ‘AF’ like bleeding without the cramps/breakouts.

Went Saturday and beta hcg was 21. Had that blood taken at 4:30 pm. Went back today at 11 am and my levels are at 30. So, they didn’t double, but did go up, despite the bleeding. I go back Wednesday for third draw.

Maybe I’m just trying to find a glimmer of hope, but could the fact that I only gave 42.5 hours between tests vs 48 have made enough of a difference?

We aren’t sure when I o’d because I ovulate so late in my cycle, but I’m either 9-11 DPO, or 13-17 DPO. Obviously with my levels being so low, we are hoping it’s earlier but we just don’t know. Has anyone had slow rising hcg and still had a viable pregnancy?

Right now I don’t know if I just want to be sad and cry or be thankful they rose a bit even if it wasn’t exactly what I was hoping for.