plan b after ovulation.. 😒

- mariah .

so, my last period came on June 14th & lasted 4 days. My boyfriend & I had unprotected sex on July sixth & 7th. I took plan b on the 8th ... my period was due July 17th it is now late , I have lower back pains and slight cramps ☹️ anyone ever been through this before ? What should I do 😩