So I had sex April 27th he came inside me

Patient: So I had sex April 27th he came inside me but the next day I took the plan b pill however my period came the 12th of May however only lasted 2 days I had sex a day before my period and after and non stop is there a chance I could be pregnant from the time he came inside me? My boobs have grown and so did my belly I don’t know if I’m bloated or if I am because I am kinda chunky . Please help

Doctor: