welcome to hcm..
Pleas do a UPT (urine pregnancy
test) which u can do it at home by urself. If its positive, then the spotting (brown discharge) which ur getting is because of the implantation
of the placenta in the uterus
, which means there's further development of the fetus is happening in the womb. This has to be a good news for you:-)
If pregnancy is negative, the tablets do have these side effects because of the hormones in them. Kindly do not panic.