My ds is 8 weeks old (born at 36 weeks) and has been slow at gaining weight. He originally lost 6% of birth weight & took 3 weeks to re-gain. He has been averaging only half an ounce per day at the most since. Im EBF but worried about his slow growth. The MW/HV & Breastfeeding support worker all think his latch is okay. He's charting the 9th centile based on his due date age. The HV is not overly concerned at the moment but I'm feeling down about how small he still is (his last weigh in measuring 6.4lbs). I don't want to start mix feeding but wonder if I should (family members and dp are starting to suggest it). Any advice?