So beyond frustrated!!

I found out I was pregnant on August 3rd with a home test that said 2-3 weeks. The next day I went to the clinic to confirm pregnancy with blood work done that confirmed I was pregnant and also between 2-3 weeks. When I went to schedule my appointment at another place they said the results to them looked more like 1-2 weeks more like 2 my first appointment isn't until August 28th. I haven't had a period because I'm breastfeeding and also have a 7 month old! Anyone else been in the same boat?