Ay, alam ko yan, mama, four weeks and still worried about the cord, totally normal ka mag-alala! But please get it checked by your baby's doctor or pediatrician asap, especially kung may unusual smell, pus, or sobrang init ang area, better safe than sorry, di ba? Once the doc gives you the all-clear, you'll feel so much better, trust me. Laging may something na nakakagulat sa first months pa lang, ako mismo, pinapakita ko sa doctor every little thing Pero yan talaga ang safest way. Galingan mo, mama!