Let me know what you think this is.

Okay so my periods usually come on the 4th my period in July came on July 7th I was have unprotected sex.

The period that came was only for one day because I started my birth control pill the Same day as the moment of my first bleed so I could be protected immediately.

The on my placebo week I bled a bit but nothing crazy but at least my body knew when to bleed.

I continued taking the pill and now again on my placebo week I am

Bleeding again.

Is this normal does it align with not pregnant or pregnant?

Could I have been pregnant before I started taking the birth control pills ??