Hi,
In a normal pregnancy, the gestational sac can be made out as early as 4-5 weeks through trans-vaginal sonogram. If you had only a pelvic sonogram, please go for a trans-vaginal sonogram again. The bladder need not be full and abdominal fat has nothing to do with the findings here. You can also couple these findings with serial serum beta-hCG titres as doubling titres every 2-3 days indicate good progress of the pregnancy. Please do not worry, everything will be fine. Wish you good health.

Hello
Thanks for writing to us with your health concern.
According to your last menstrual period - LMP, you would be 7 weeks plus pregnant on the 22nd of February.
By that time, you would be able to see a gestational ( pregnancy ) sac with a fetus ( embryo ) and a heartbeat ( cardiac activity ) within it.
Also please make sure that the scan was done transvaginally, and not transabdominally.
Transabdominal scans have very poor resolution and visualization.
So if it was done through the abdomen, belly fat would obscure the details.
It is best to have it repeated transvaginally.
If you have a history of irregular cycles or delayed cycles, you can wait and watch for a week and then repeat the scan.
Meanwhile take rest, avoid stress and intercourse.
Take regular folic acid supplements.
If you do not have any pain / cramping / spotting / bleeding, there is no cause for concern.
All the best
Take care.