Dating scan - should I be worried :/

[Kamy89]

I just got home from my dating scan and I am measuring a little behind where I thought I was.

According to calculators I am between 6w and 6w4d but ultrasound is saying 5w3d/5w4d.

Heartrate was 100 and then 104 BPM.

My gestational sac was also a long oblong rather than a circle, is that normal?

The sonographer said it was very early for this type of scan but that everything looks good..

After holding my bladder and having the sonographer push so bloody hard when I went to the bathroom straight afterwards I had an intense cramp/pain come over me from my left ovary all the way to my back that had me in tears 😭

Thoughts?

[Kazza78]

Dating scans are recommended for 8 weeks.
What cycle day did you ovulate this month do you think? Or how long on average are you cycles?

[Kamy89]

I wouldn’t have a clue to be honest, it’s been a surprise for us. My cycle has been irregular for quite some time..

[Beary]

I wouldn’t have a clue to be honest, it’s been a surprise for us. My cycle has been irregular for quite some time..

If you’re not sure when you’re ovulated I really wouldn’t worry this soon. It’s entirely possible that you ovulated late - particularly if your cycles aren’t regular