late period

Emily • One miscarriage at 10weeks pregnant 08-7-16 Had my rainbow baby 01-17-18 Jaxson Joseph 💜 Pregnant again 2021❤️❤️
Late period 3 days I'm on a 28 day cycle I'm on day 30 TTC for 3 months I tested yesterday morning got BFN I tested again this morning BFN could I be pregnant ? I have more discharge than normal light cramps through out the day but my perioddoesn't  start