Worry too soon?

So of course the day after I start my 2nd trimester I’m experiencing some (what I would consider) mild brown old blood spotting but no cramping for the last couple days. I have not spotted once during this pregnancy and it’s my first so I’m obviously concerned. I’m going to contact my doctor as soon as they get back from lunch. I know plenty of you have had some spotting and all is well so I’m trying not to get myself worked up and I haven’t even told my husband yet.... I guess I’m just looking for some uplifting or reassuring information? Should I tell husband at this point and make him worry too? Uhg!!! Babies are stressful!!!