Any help appreciated

Hi, just done these tests not fmu have some more to do in the morning but just couldn’t wait! I miscarried on 17th March not had a period since (tested 2 weeks after and was negative) and now testing positive I’ve been reading some other posts that people have said go from the date of the miscarriage so that would make me 7 weeks today but the digital says 2-3 weeks? I know you usually have to add the 2 weeks before on but I usually don’t ovulate for 3 weeks after the first day of my period so does this all add up? Just so confused 🤷🏼‍♀️