Talk to Gynecologist on Light Bloody Discharge When Wipe

i am pregnant my last periods date is 15 September .my cycle length is 29 days.i missed my periods i do home pregnancy test at 24 October which is faint positive.i don beta hcg test at 27 October which had 348.42 level after this i go for ultrasound doctor do ultrasound and said nothing show in utras and said come after 10 days and prescribed medicine folic acid 5mg ,duphaston 10mg twice a day and 100 mg asprin. i repeat my beta hcg at 31 October which show 1670.11 levels .according to my lmp its my 6 week and 5 days of pregnancy .my problem is that today i feel bloody brownish discharge when wipe .is it normal or not kindly tell me .because i lost my one baby due to growth issue 2.5 year ago .at that time i face same problem bloody discharge i concive again now afrer long time .