Congratulations
4-5 weeks along would mean pretty much your AF would have been due around now.
When AF (period) was due I hardly had any cramps then a handful of days later I did like AF was going to come any minute. Sadly that cramping goes on and off most of you pregnancy ... your uterus is stretching etc.
I had sore boobs & sore nipples - my boobs weren't so bad at first and through the handful of weeks sometimes they were fine. Theres time for that symptom to show yet honestly.
Sickness ... NONE odd nausea as the weeks went on but nothing else. I mean 1-2-3 times!
Tired - this was one of my symptoms too. Some days not so bad as others.
Bleeding/pink discharge - Scarey, it could be baby or infection but it could be nothing. I had it for a handful of weeks small amounts that I would only notice when visiting the bathroom problem is you know it happens so your looking more. I never needed to wear a pad at anytime ... there was no reason for it and stopped in the end.