Worried FTM. Spotted in second trimester

JDM 💍🌈👶🏻🎀

Hello there. I know some of you have experienced spotting before during pregnancy. Yesterday I spotted for the first time. I'm 14+2. It was brown with just a tiny hint of red, but mostly brown. Naturally I freaked out since I had a mc before. I messaged my ob and she said it's probably due to constipation straining which I have been constipated. I haven't spotted since but last night I had some mild cramping. I think everything is OK but I'm still worried. I just messaged my ob again asking if I can possibly go in for an us. I just saw her on Monday and every thing was perfect. Baby had a healthy heartbeat. Has anyone had minor spotting and everything was normal? I'm a worry wart. This is supposed to be my rainbow baby 🌈👶💕