So on February 11th i had my first ultrasound, they saw the sac but no baby. And by my dates, i should’ve been 8 weeks pregnant. So my doctor thinks i was just early and to have me back in the office at 2 more weeks. So my appointment is coming up this Tuesday, the 25th. I had pregnancy symptoms right when i found out i was pregnant all the way until last week and everything kinda stopped. No more nausea or tender breasts. So i took 2 pregnancy tests today and they’re positive but kinda faint... should i be worried?