could this be a start of another miscarriage?

Hi,
Welcome to ehealthforum,
The spotting could be probable decidual bleeding. The symptoms that you describe could suggest possibility of pregnancy. If it is increasing in intensity along with increase in abdominal cramps and back pain, you should rush to the ER. If you have had a miscarriage earlier, you should have considered giving atleast 3-6 month’s gap for uterus to heal to be able to support a healthy pregnancy. If pregnancy is confirmed, consider visiting your doctor/gynecologist at the earliest for getting serial HCG levels tested. Doubling up of the hormone levels in 48-72 hours will show that pregnancy is going on smoothly. If levels are not adequate (and if bleeding/spotting is under control), then external hormonal supplements should be considered to be started to help you in preventing miscarriage/threatened abortion. An ultrasound scan done would also help in confirming fetal wellbeing. Take adequate rest. Drink plenty of water. Maintain healthy diet. Avoid any heavy work. Avoid lifting heavy objects or climbing stairs or standing for long periods of time. Look out for early danger signs like bleeding/spotting, increasing intensity of abdominal cramps and back pain etc. Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately.
Take care.