My dates don't add up?

[esorelleinad]

I had a 7 day period on May 28th. Completely skipped June and had a 2 day bleed July 3rd. Both those dates would make me between 8-12 weeks. Went for a scan and I'm only measuring 6 weeks? I can't work it out.

[becca_mc21]

My dates never added up either my last period was 6th Feb but my measurements of baby wasn't the same as my dates. So I had my last period 6th of Feb and conceived on the 2nd or 6th March. So I'm 27 weeks pregnant by my last period I should be 28th. My period were never on time either. Don't worry it could just grow fast later on I always have slow growth then it's grows as it should.

[esorelleinad]

Yeah. I have an enlarged right ovary and cysts on my left ovary. Maybe that's made my period go crazy? I used to have a regular period every 32 days and that was normal for me. Since having children they're all over the place. I'm 6w3d today so I conceived on July 25, 3 weeks after my "period".

Stupid menstrual cycle lol

[MichelleNikkita]

I had super irregular periods so I never went by the last known date. If I go from my due date I got pregnant on Valentine's Day and I don't even remember having a period at all in February.

[RockRose]

If you're measuring 6 weeks pregnant right now,  you got pregnant about 4 weeks ago,  around July 27.  

It sounds like your period is really irregular,  and when that's the case you can't really count back to a last regular period,  because you aren't having them regularly.