I am not sure why you want to increase your platelet further. Please do not take vitamin K or other supplements without any need for them. A platelet count above 1,00,000 platelets per microliter (mcL) is considered normal. So your count is normal even though the range is usually 1,50,000-4,00,000. You should not have any problems in carrying the pregnancy forward. However, if in doubt, please consult your gynecologist.