I'm so heart broken

so i was 8 late for my period done tests and some came back negative some came back positive. I saw my doctor yesterday and asked for bloods to confirm and she said no need as the tests I have are positive. you can get a false negative but not a false positive. she booked In my first midwife appointment and told me to collect my maternity pack. so me and my partner went and did that last night all excited for this bundle of joy we thought we was expecting and this morning I woke up to what I believe it my period. I have never ever been late but that must be what it is and now I don't know how to tell him when he was so excited. I'm angry at my doctor because she told we that I am definatly pregnant and to not worry. I just really don't know what to do now