Pregnant?

C

I’m not even sure if this is the correct place to be posting but I had a daughter in June of 2019 and another one in June of 2020. So they are Irish twins. I’m about 10 weeks postpartum. Me and my husband had sex on July 3rd we started with not using anything at first but he did put a condom on and finished with it on. I took a plan b pill the next day just to be safe. I bled about a week later but not sure I should count that as a “period”. Other than that I haven’t bled. We also had sex one other time a week and a half ago and he wore a condom the entire time. Since I hadn’t started bleeding yet I decided to take a pregnancy test to rule it out and it came out positive. Is there any chance whatsoever this could be leftover hcg?! I plan on calling the doctor on Monday morning but wanted to see if anyone has been in a similar situation.