5wks & concerned (or most likely just being neurotic lol)

So I didn’t know I was pregnant and drank quite a bit on Memorial Day. That next morning I was puking off & on for 5 hrs and had severe abdominal pains. I figured it was just because I had gotten sick and it was close to when I was due to get my period. Fast forward to now, I’m 5 wks along today with my little dye stealer. This is my 2nd baby, my son is gonna be 2 next month, so it’s been quite a while since I’ve had to go through this part and I’m concerned. I had 4 miscarriage before my son, but this isn’t the same. I’m not bleeding at all, my nipples are SUPER sore (which super sucks because my son still gets boob to go to sleep and nothing else works while he’s teething), I’m moody, I get slight cramps/abdominal discomfort occasionally, peeing constantly, always hungry and tired, constant lower back pain. I don’t have insurance yet, I just moved to a new state with my fiancé so I’m waiting for the approval, so I don’t have a dr and my fiancé wants to wait until I’m 8 wks to go to get an ultrasound. I guess I’m just needing some reassurance and advice