Hey.. don't stress over it.. relax.. Try to reduce your salt intake and increase water intake. Swelling feet generally happen due to water retention. Strange as it may sound water retention is reduced if you supply enough hydration to your body.

Same problem from 5th month now my 7th month is going on but still same problem.

Soak feet in warm water with Epsom salt n keep it feel elevated when u sleep....

Reduce your salt intake. Keep your feet elevated while lying down. Soak feet in warm water.have lots of fluids