Oo, normal yan karamihan ng cases after IE (intrauterine insemination)! A few of us sa mom group namin experienced the same thing, it's usually just old blood or a tiny bit of spotting from the procedure itself, nothing to worry about. Just keep an eye on it though, kung meron ng heavy bleeding, severe cramping, or if it lasts more than a few days, best to message your doctor right away para peace of mind lang, especially since you're in such an important stage. Sending baby dust sa inyo!