Okay so the first day of my last period was On January 29th, I also got my nexplanon out on January 26. I took a pregnancy test the whole week I was suppose to get my period and they were all negative. I finally got a positive on March 13th, I took a test 3 days before that and it was negative. Glow says I am 7 weeks because it goes off of my last period, but shouldn't of I gotten a positive the week I was suppose to get my period then? The only thing I can think of is that just getting off nexplanon made my cycle messed up, and I might of actually conceived the week I was suppose to get my period. Opinions?