Help

I posted here a few times over the last month, I had found out on the 26th of September that I lost my baby at 17 weeks and 6 days. On October 3rd I gave birth and it’s been probably over/around 10 days since I stopped bleeding. Unfortunately I don’t have the exact day I stopped bleeding. During that time my husband and I had some unprotected sex and today I’m spotting. Not bleeding heavily, but spotting. Is it possible that’s implantation bleeding? What on earth do I do I’m having a panic attack. I was going to get on birth control after my first period because unfortunately I am under the assumption that you can’t get pregnant until you have your period again.

Is this just left over tissues? Could it be a light period? I haven’t ever been through anything like this before. I’ve never lost a baby so far along before. I’ve had two chemical pregnancies before but being well into my second trimester I feel lost. Do periods return this quickly? Could an infection be making me spot? I just need to talk to someone about this before I go insane. I’m making a doctors appointment ASAP. Until then can anyone give me advice/insight please? I feel like I’m about to throw up from my nerves. Is there a way this is from my miscarriage still since I lost baby so far along?