the pill

I'm on the pill and it's my first month on it, I usually take the pill at 9:45 every night but 2 weeks ago I was drinking and threw up an hour or two after taking it so I think I may have throwen the pill up. I didn't think about it untill a week later so I didn't do anything to fix it. Now I'm spotting ALOT and have been for the past week. Is the spotting from missing a pill? Or just cos it's the first time being on the pill? Or both?😂 and also I had unprotected sex that night I threw up so I know I'd be covered cos the pill covers ya for 36 hours but then I had sex again on Wednesday and cos I got told it takes the pill 1 week to kick in so if I missed a day does that mean that I wasn't protected for that next week? Even when I took the other pills?? Please if anyone can help Id love it