Confused

virgo • Fri, Feb 12

So found out Wednesday i was pregnant they did a sonogram and blood work couldn't see much but the sack had me come back today said my hcg levels went up since Wednesday but still can't see a baby should i be concern? Even tho they said it's probably cause im very early could i have ovulated later than i thought? My ovulation was Jan 22nd had sex the 19th of January!!