Advice appreciated! 💜

Soo it was my first month ttc and I was taking the clear blue digital ovulation tests. My period had begun the 5th of September but I ovulated VERY late according to the ovulation tests. Like on cycle day 28 or so it said I was ovulating. Moving on about 8 or 9 days, according to my period tracking app my period was 5 days late so I took a pregnancy test which came out extremely faint. Turns out I was pregnant! When I went to my first appointment, they said according to my last MP I would be 6 weeks 6 days but the baby was measuring only 5 weeks 5 days. It concerned me a bit. I just had my most recent appointment and they said according to my last MP I would be about 11 weeks 4 days or so but the baby measured right on track with the 5 weeks 5 days, meaning I was exactly 10 weeks 4 days! strong heartbeat of 166!

So the question is, did I just ovulate really late and got pregnant later in the month and later than most women or is my baby just a bit behind?

Also, my period and cycle have always been a bit crazy but I had never tracked my ovulation before the month that I got pregnant.

Any advice appreciated!