Affordable Pregnancy Skin Care

Ka
Although I'm not getting too big right now, I just started showing a couple weeks ago and want to help prevent stretch marks on my stomach or at least keep from having extremely dry skin later. What are some affordable yet effective products I could get? I'm also up for trying facial creams and bath stuff. I need a relaxing bath soon as soon as hubby fixes the faucet. Showers are nice but I would love some aroma therapy to de-stress.