I think I’m pregnant

So I’m really nervous I had sex two days after my last period in August with a condom and he pulled out . I keep getting blot clots pink blood and brown blood and bright red blood and no full period . I had sex before I started the pill I’m not sure if the pill is fucking with it I chewed a few pills by accident and I’m wondering if it caused it to mess up ???

I’m on my 3rd sugar pill and no period