Opinions please

So this month I had a short period started on the 18 ended the 21. Overall it was a very strange Period for me I had large blood clots after taking 2 test that had vvvfl but the next day all the test I took were bfn. I'm not sure i f I experienced a chemical pregnancy? But last Friday when I wiped I noticed dark brown blood that turned red then enough to wear a panty liner, and it was on and off until Monday. The entire time I have seen the strange discharge this app and two others have said im in my fertile days. It makes since because I notice very stretchy any watery CM. So my question to everyone is could I have been pregnant, is this normal, has this happened to anyone else and should I continue to BD with my husband this app says my ovulation day is tomorrow? Last year I suffered two mc at 6 weeks and 12 I'm finally ready to start trying again.