Hay nako, that must be so stressful para sa'yo Four months after a miscarriage, your cycle is still settling down talaga, so delays and wonky periods are pretty normal, a few of us mums who went through miscarriage din experienced the same thing, sometimes takes months pa para regular ulit. But since you're worried, it's best to check with your OB para peace of mind, kasi could be stress, hormones still adjusting, or something else they can help figure out, and they can rule out anything else na pwedeng maging concern. In the meantime, take care of yourself, I know waiting and negative results are emotionally draining. Sending you hugs!