I came off the pill last June after 17 years. My periods only came back in March, but now with BBT and CB OPKs I can tell I am ovulating and have a 28-30 day cycle. First month TTC this month. However, I’m worried as my periods are SO light and dark dark brown. Never red. Like I couldn’t use a tampon, only a pantyliner with dark brown spotting for 3-5 days each month and mainly when I wipe. Is this a sign my lining isn’t going to be thick enough to conceive? Should I ask for some tests at the GP / willing to pay for private tests.