What is the ruling on one who abandoned an 'Umrah due to doubt about being in a state of major ritual impurity (janābah) after entering into iḥrām, then performed another 'Umrah with a new intention? And does this 'Umrah become invalidated from the rites, and is the marriage contract valid? And is there a blood sacrifice (dam) due upon her? And what is the ruling on one from whom madhy (pre-seminal fluid) was discharged during ṭawāf, and he completed the 'Umrah, then performed another 'Umrah? And is the marriage contract valid before sacrificing the hady (sacrificial animal)?

A Muslim must learn the rulings of worship and ask about what is unclear to them. You erred by not completing the 'Umrah (definition). What was obligatory upon you was to perform ghusl (definition) (ritual bath) upon verifying janābah (state of ritual impurity) to complete it, but in case of doubt, ghusl is not obligatory. Since you performed ṭawāf (circumambulation) and sa'y (ritual walk) and exited the state of iḥrām (sacred state) upon returning for the second 'Umrah, you have exited the state of the first iḥrām. As for the prohibitions of iḥrām that you committed before exiting the sacred state while being ignorant, there is no penalty upon you for them. If the marriage contract was concluded after you exited the state of iḥrām, then your marriage contract is valid. However, if it was during the state of iḥrām, then it must be re-concluded. Whoever experiences the emission of madhī (prostatic fluid) has their ritual purity invalidated and must repeat wuḍūʾ (ablution) to complete the ṭawāf according to the majority of scholars. Some scholars hold that purity is not a condition for ṭawāf, or that it is valid with the obligation of an animal sacrifice (dam), and this less preferred opinion may be adopted when rectification is impossible. As for the distribution of the sacrificial animal (hadī), you can inquire with the Affairs of the Two Holy Mosques.