Short answer: Most of the time it's simply early, baby's position, not enough gel or moving too fast. Before week 12, not hearing it at home is very common. A home doppler can't tell you how your baby is doing, so if you're worried for any reason, call your provider rather than keep searching.
First, take a breath. Not finding the heartbeat with a home doppler, including ours, happens to lots of moms, especially early on.
1. It's early
Many moms first hear it between weeks 10 and 12, and for some it's week 14 or later. Try again in a few days.
2. Baby's position
Baby may be facing away or tucked deep. Try a slightly different spot, or another time of day.
3. Not enough gel
Static usually means air between probe and skin. Add more gel.
4. Moving too fast
Glide slowly, in small circles, and pause on each spot for a few seconds.
5. Your bladder
Early in pregnancy, some moms find it easier with a fuller bladder, which can lift the uterus a little.
6. Placement
Start low, just above the pubic bone, angled slightly down. See where to place a fetal doppler, week by week.
When to call
If you have pain, bleeding, fewer movements later in pregnancy, or any worry at all, call your provider. Don't keep searching at home to decide whether to call. Not hearing the heartbeat at home doesn't tell you anything about your baby's health, and neither does hearing it.
Our Heartbeat Finder gives a plan for your week, and our step-by-step guide to using a fetal doppler at home covers every step. Our at-home fetal doppler kit comes with 60 nights to try it.
If you're ever worried, call your healthcare provider.
Not a substitute for prenatal care.