TTC after birth control, so confused

Maryam • Married 05-27-17. #1 👶🏻 due 08-20-19

Here's my story:

Was been on bcp for about 6 years, most recently was on Diane for 3 months before stopping in the middle of January because we wanted to TTC. Had a withdrawal bleed and then AF Feb 20 (which would make me CD 48 today) Have had nothing since then. Have been nauseous, gassy, experienced some brown/light pink spotting one week ago. Taken a preg test once a week for the last four weeks and all BFNs. We bd every day or every other day. Any advice or similar stories? Going to the doctor in a couple of weeks