Spotting!

Hi everyone! New to this forum but really wanted some insight and help to see if anyone has experienced this problem and was able to conceive naturally. Before my period starts for the past 6-7 years I have several days of spotting. Brown spotting but not an actual flow. Then, my period will begin. Doctors have done all kinds of tests and ultrasounds and haven’t found anything until recently they found an “endometrioma” on the ovary. But anyway, have any of you moms experienced any type of spotting prior to a period starting and still got pregnant? When I say spotting I mean I wear a thin pantyliner because it can often stain my underwear! My husband and I want to try but I am so worried already that we’re going to have problems 😞😞😞😞