10 dpo and freaked out

So I’ve been working hard for a month to lose weight and I actually lost about 6 lbs. took a test today at 10 dpo, a cheapie test, and there is a faint but definite line. I’m happy but have experienced a chemical pregnancy in the past and am freaked out that my weight makes this all risky. Like it’ll be gone in a couple Days or worse, weeks. I don’t even want to tell my husband yet to spare him if things go south. It was so hard last time. Wish I had lost more weight before this happened but I’m impatient — and now I’m scared!!