joining the army

Idk what to do .. I want the best for my baby . I'm 3 months pregnant and I really want to join national guard . My dream is to be a police officer .. they are willing to pay my university and will help me accomplish my dream .. imagine being a police officer and being in the national guard .. my baby will be having everything ! And instead of struggling ... my mom loves the idea .. my fiancé doesn't .. he told me he can't live without me for a week he thinks I'm gonna abandon him with our baby .. but it's the total opposite.. I just want the best for our family .. my fiancé is an immigrate .. he really can't do much but as for me I can ... I really want to be someone in life and want my baby to look up to me ..