Please offer some advice I’m anxious lol

Hi guys! I’m almost 16 weeks and this is my first pregnancy, I just am experiencing things for the first time and some of them are making me a little anxious. It’s just me wondering if things like slight abdominal cramping and indigestion are normal??? I’ve been told they are but it still kinda concerns me cuz I don’t wanna ignore something that could be happening with my baby. Any advice to help with my nerves or help explaining what I may have to expect with the delivery (etc.) would be super appreciated!