Kimberly,
Tiz wise that you asking ahead of time! Wisdom from above will surely grant you moral fortitude in the face of temptation! In the eyes of the law established by God, you are divorced, so in the eyes of God, you are divorced until you remarry. You will certainly be blessed for allowing much time and prayer for God to re-establish your relationship with your ex. This will give you opportunity to observe whether he is bearing good fruit in his new found faith and how true his committment to Christ really is. If he pressures you into bed before you remarry, then that be an indication of something amiss.
Romans 13:1-2 Everyone must submit himself to the governing authorities, for there is no authority except that which God has established. The authorities that exist have been established by God. Consequently, he who rebels against the authority is rebelling against what God has instituted...
Galatians 5:16-18 I say then: Walk in the Spirit, and you shall not fulfill the lust of the flesh. For the flesh lusts against the Spirit, and the Spirit against the flesh; and these are contrary to one another, so that you do not do the things that you wish. But if you are led by the Spirit, you are not under the law.
Galatians 6:7-8 Do not be deceived: God cannot be mocked. A man reaps what he sows. The one who sows to please his sinful nature, from that nature will reap destruction; the one who sows to please the Spirit, from the Spirit will reap eternal life.
1 Thessalonians 4:3-5 For this is the will of God, your sanctification: that you should abstain from sexual immorality; that each of you should know how to possess his own vessel in sanctification and honor, not in passion of lust, like the Gentiles who do not know God...
James 1:13-15 Let no one say when he is tempted, "I am tempted by God"; for God cannot be tempted by evil, nor does He Himself tempt anyone. But each one is tempted when he is drawn away by his own desires and enticed. Then, when desire has conceived, it gives birth to sin; and sin, when it is full-grown, brings forth death.
Matthew 6:13 And do not lead us into temptation, but deliver us from the evil one.