Implantation bleeding and chemical pregnancy

I had a chemical back in September. That month, I had implantation bleeding a few days before getting a BFP. It was light pink, super light spotting at 10-11 DPO. I took a test at 14 DPO and got a BFP. Everything was fine until a couple days later when more spotting started, which then turned into heavy bleeding and ultimately turned out to be a chemical.

We’ve been trying again and I had what looks to be implantation bleeding again at 10-11 DPO. Its stopped and I’m now 12 DPO and planning to test tomorrow.

If it is positive, I’m nervous the spotting means I’ll have another chemical. Am I worrying too much?

Anyone had implantation bleeding with a chemical and then again with a healthy pregnancy?