Pain and pregnancy

Nikki • Mother of 1 with 2 bonus kids...1 miscarriage! Pregnant NOW after 2 yrs and some change

Found out I was pregnant last Wednesday... I’ve been having pains in my lower back which I know is normal...I’m 5 weeks...The thing is when I’m walking...it hurts and the bottom of my stomach hurts...Anyone experience something like this? What to expect?