I took plan B after i had unprotected sex. I realized i was on the first day of my fertile week. periods usually are 28 to 27 days. That month i had a 22 days period. I bleed after a week of taking, just spotting, very light pink that lasted two days. I have 2 period apps on my phone, one of them says im 2 days late the other one says my period should be on 4 days. I think one of the apps is telling me in late bc of the 22 days period. I took a blood pregnancy test and it was negative. But im super bloated and i've been feeling nauceos since yesterday. Should i wait 4 days ant test again?