I have irregular periods, which means I can go up to 4 moths without a period. march 23rd me and my boyfriend had unprotected sex so i took the plan b pill the next day. my period came the 30th- the 3rd of april, (also the month before that i had no period, so i dont know what day i should of had a period that month). my doctor had said my hormones levels are fine and I there is no phyiscal or hormonal abnormaloty with me. anyways its may 7th and i havent gotten a period at all. me and my boyfriend have had sex ,but pulled out before cuming. i was on antibiotics for about all of april and it made me very nauseas.

now my symptoms are:veyr very fatique (maybe im just stressed because of work and school)hungry but cant eat much

breast are about half a cup bigger and my nipples are a little sensitive (could this just be my period coming)

nauseas a lot

cant concentrate

I am very irretable and I'm crying all the time (maybe I just have PMS)

bloated heart burn (antibiotics?)back pain (i also got hurt at work and i have pains back and forths )

white discharge for about 4 weeks

my cycle is now 39 days since my last period

i took a pregancy test and it was negative

should I consider another test ? blood work or another urine test?could it be the plan b pill?