Need some help on calculating dates

[CathyandHeathcliff]

My last period was 5th January. I got my positive test on 11th Feb. It was a digital test and I got 1-2 weeks. I'm supposed to be 11+4 according to my LMP.

Just go by your LMP for now and they'll correct at your 12 week scan. If you go and it turns out you're only 8-9 weeks they'll get you back for another scan.

Yeah digital tests are notorious for not getting those weeks wrong. Agree with PP that you should go by you LMP

please ignore that horrendous double negative! I meant to say "digital tests are notorious for not getting those weeks right!"