this happen to anyone else ?

Ophelia

so the first day of last period was around 7/8 ish of October . from the first week of November I was feeling off, but with all negative tests . any way come the 13th I hot my first possitive .. so worked myself out with glow to been 7 weeks . . Anyway spent the night in hospital last night with a lot of pain, they suspected a ectopic pregnancy after 13 hours in hospital , it's definitely not ectopic , but only measuring at 5 weeks which makes no sense .. at all . gyno said that it may be a failed pregnancy that hasn't came away yet , or the scan is right and I'm only 5 weeks somehow . please say someone had a similar experience