Thats partly because some animal studies suggest the drugs can harm the development of a fetus, but mainly because scientists havent studied the impact on pregnancy in humans
Important safety information Physician-prescribed anti-aging treatments delivered to your door

Research has examined its role in: GHS-R1a receptor binding, phospholipase C/calcium signalling, and GH vesicle exocytosis studies GH and IGF-1 axis stimulation and GHRH co-dependency pharmacology research ACTH and cortisol co-stimulation HPA axis interaction with the ghrelin receptor system CD36 scavenger receptor binding, PI-3K/AKT1 prosurvival pathway activation Cardiac protection ischaemia/reperfusion injury, dilated cardiomyopathy, and post-MI models Wound healing closure kinetics, inflammatory cytokine suppression, and hypertrophic scar prevention Anti-fibrotic pathway research PPAR upregulation, TGF-1 and CTGF suppression NPY neuron activation, arcuate nucleus IGF-1 mRNA upregulation, and hypothalamic Akt signalling Gastrointestinal motility research via GHS-R1a and motilin receptor interaction Atherosclerosis research via CD36 azapeptide analogue development GHRP-class reference compound for SAR studies Ipamorelin, GHRP-2, and Hexarelin comparisons GHRP-6 and Cardioprotection Research GHRP-6 has proved to prevent and attenuate cardiac cell death and left ventricular failure in a variety of experimental scenarios

Clinics in perinatology , 1 (2), 331-348.
For example, certain medications used to treat diabetes, such as insulin or sulfonylureas, can increase the risk of hypoglycemia when combined with Semaglutide
Always consult with your healthcare provider for personalized guidance regarding medication use during pregnancy