HELP ABOUT BLACK CROW!?

ok so my mom was out of town yesterday tanning at a friends and a crow stayed right over her stairing and cawing at her the entire time she was outside she fely really creeped out after a few hours and whent inside... today she was back in our town and was out by the lake talking to her bf when a crow came right next to her and sat cawing at her and wouldnt leave her alone, isnt that a sign? im worried something going to happen to me and her or the baby i have on the way.