Should I take a test?

For a little while now I have been experiencing different symptoms. However my husband and I have not been intimate for a while. Some of the symptoms that I have been experiencing is cravings fatigue mood swings and vivid dreams. I know that bleeding and spotting are also common during pregnancy but I’m not sure if I guess my “period” is really my period or just the bleeding that some people have. According to this app it says that I’m supposed to be fertile in two days or that’s when my window is open so should I/do I need to get a test and take it.