In general, the American Diabetes Association considers insulin (such as NovoLog) to be safe and effective for use during pregnancy
A molecule that size does not simply diffuse across an intact barrier, which is exactly why real GLP-1 medications are injected or specially formulated to survive digestion rather than pressed on as an adhesive sticker
Dermatologists sometimes prescribe it to women too, particularly those who are postmenopausal or those using reliable contraception

When to call your provider Routine check-in (schedule within 1-2 weeks): Nausea or vomiting that is bothersome but not preventing eating or drinking Constipation lasting more than 3 days Mild abdominal discomfort Questions about dose escalation timing Weight loss plateau lasting more than 4 weeks Same-day contact: Persistent vomiting (more than 12 hours, unable to keep fluids down) Severe abdominal pain, especially upper abdomen radiating to the back Signs of dehydration (dark urine, dizziness, decreased urination) Severe diarrhea (more than 6 episodes in 24 hours) New-onset vision changes Symptoms of gallbladder disease (right upper quadrant pain after fatty meals) Emergency care (call 911 or go to ER): Severe chest pain (rule out cardiac causes before assuming reflux) Difficulty breathing Vomiting blood or coffee-ground material Severe allergic reaction (facial swelling, difficulty swallowing, hives) Symptoms of pancreatitis (severe upper abdominal pain radiating to back, fever, rapid pulse) Altered mental status or confusion The line between "manageable side effect" and "medical emergency" is whether the symptom is interfering with hydration, nutrition, or indicates a serious complication

semaglutide nearly as long
This post covers the clinical reasoning behind the weekly schedule, what happens to your body if you skip doses, and how we help you find a personalized path to success