Swollen feet at only 21 weeks?!

Audrey • I'm a first time mum and baby will be due end of July! My husband and i are very very excited!
My feet are so swollen since last week. I press hard on them with a finger, oh wow that dent could stay for years! My shoes are tighter now and i felt pain on my soles when walking. I thought it is common for bad swelling only at 3rd trimester? My doctor says it's fine but i haven't seen anyone in my stage of pregnancy like this before! Anyone facing this? Any natural remedy?