Hello everyone! Happy Christmas Eve Eve Eve! 
I'm ttc #1 and 31. My period was due on the 17th and I have a pretty regular period. Fluctuating by 1 or 2 days at most! I use the premom app and believe I ovulated on CD14 so am 14DPO. Have used Tesco cheap tests, FRERs and Clear Blue tests but all BFNs. I'm feeling the need to pee more and developed lower back ache today which I don't normally get as a pms symptom. Has anybody else been in this situation and received their BFP? I know implantation timing can affect hcg levels. Any advice or words of encouragement/realism greatly received!xx