HELP!

Lacee

Ladies, I need advice and help. I found out I was pregnant on July 6th. Due to my last period, I am suppose to be 6 weeks along, 7 weeks on Friday. Last Thursday I went to the ER for spotting. I have a history of miscarriage so it scared me. They couldn't find anything and told me I may not be as far along as they think. My ovulation was Jun 25. Has anyone else had this happen?! Was your pregnancy ok and healthy?! HELP!!