Chemical Pregnancy Questions

I’ve been trying to conceive since March and just had my first positive pregnancy tests this past Monday (almost a week ago). Last night I started bleeding heavily and had some cramping. I believe I had a chemical pregnancy (my test was negative this morning) but I’m going to call the doctor tomorrow to see if he can see me early this week so I can get some answers. In the meantime, I was wondering if anyone has any answers or guidance they could share on the following:

Will the doctor be able to tell if I had a chemical pregnancy?

How soon can I start trying to get pregnant again?

Has anyone had a chemical pregnancy and felt it was related to taking a mucolytic?

Am I more likely to have another chemical pregnancy now that I had one?

Thanks in advance for any info