Will kethu in 7th house cause delayed baby

Kethu the planet that forms body of rakshasa whose head part is rahu when posited before rahu in a horoscope is found to bestow best benefits. As such kethu in different houses say 3rd, 6th house, 9th house, 10th, 11th houses are the best. Even in 12th house kethu does better job of moksha in this janma. IS kethu in 7th house good or bad
When kethu is placed in 7th house the house of marriage called kalathrasthanam it bestows effects in the married life. There is a general misconception that this is 100% bad
As such it is recommended to match person having kethu dosha to avoid divorce. However, when kethu is placed in 7th house there is a definite effect on health of spouse.
Kethu with differnet planetary combinaiton will produce unique effects
1) Kethu in association with venus - This is the best combination for marriage. Typical example would be nitha, mukesh ambani. Count on delayed pregnancies or early miscarriages. But married life is the best and spouse will be really endearing. Life after marriage will be really good and if properly matched they will have perfect life after marriage
2) Kethu with sun - Frequent arguments with spouse is unavoidable. In case of vrishikha lagna /ascendant also called scorpio ascendant the eighth house of zodiac the spouse will be under control of in-laws. With jupiter aspect this will turn out to be under safe hands
3) Kethu with moon - Not perfect for marriage. Kethu is often considered enemy of moon, combination not so favorable
4) Kethu with mercury - They will have breakup before marriage. Also, not someone to be trusted after marriage :). Kethu is considered equivalent to mars. Mars and mercury are natural enemies. Combination makes relationship tricky
5) Kethu with jupiter - This is equally good as venus except for that venus rules romance and jupiter is more responsible. Otherwise, good one to be considered. The combination can be good or bad based on ascendant
6) Kethu with saturn - They tend to marry widow, widower
7) Kehtu with rahu - This is not possible as rahu and kethu always have 180 degree displacement. One option is plain kethu without any combination. This is bad in general
8) Kethu with mars - Please avoid this unless sperfectly matched
Kethu the planet of moksha when placed in 7th house will lead to delayed pregnancy. In some cases the person will be devoid of any kids. Kethu has the power to control planets in its 3rd, 10th ,11th house. When kethu is placed in 7th house, it is aspecting 5th house with its 11th aspect. This in general will lead to delayed pregnancy. So, what are the ways to get rid of this problem?
1) Pray to lord maha ganapathi day in day out
2) Pray lord hanuman
3) Get married after proper horoscope analysis. Generally getting married to someone who has venus in best position helps good

This is a kalasarpa dosham and hence even if the conception is late it will give you best babies.