6 Weeks Pregnant with Brownish Red Discharge

I have brownish red discharge since early morning. Spotting ba ito? Worried baka mauwi sa miscarriage, 2nd baby namin ito. My last check up was Friday, advised to return after 2 weeks since gestational sac pa lang nakita. Pinapa-wean na rin 2 years old ko sa breastfeeding, it causes preterm labor daw. Mixed feeding naman ang toddler ko, pero pinapa-stop ko na rin siya sa breastfeeding para sure. Thanks.