Kinda nervous

Chelsea
So I got my bfp a week ago and it came up right away... I've taken 10 yes 10 tests since then because I had a miscarriage in Oct and I'm nervous about it happening again. I've had small symptoms. My nipple's being sore and my breast soreness coming and going. No nausea or vomiting. Just my stomach is tender. I had blood and urine taken yesterday and my first sono is the 16 of this month. This is my second child and I remember with my first one I was sick for the first 3 months I have no cramping bleeding or anything. If that I've had increased mucus that's clear. My question is has anyone had no major symptoms with their second pregnancy? And how far along were you when they saw the baby on sono? I'm 5 weeks and 6 days today so by the time I have my first sono I'll be 7 weeks. Sorry for it being so long and tmi