Aww mama, totally get the overthinking, lahat kami first-time moms ganyan! From what your OB told you, those symptoms are actually pretty normal sa first trimester (cramping, upper abdominal discomfort, and heartburn happen dahil sa hormonal changes and the baby's growing), but since anxiety is eating you alive, maybe ask your OB specifically what cramping pattern would warrant a call to them, like kung gaano kalala or anong signs to watch for, para may peace of mind ka at maiwasan yung endless worry spiral. A few of us mums found na once we knew exactly what to look out for, it helped us chill a bit instead of googling every twinge haha, and it's okay to message your clinic between visits kung talagang anxious ka na, they understand first-time mom jitters! Congratulations sa baby, you're doing great by being careful and informed!